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TALAT Lecture 1501: Properties, Characteristics and Alloys of Aluminium

Description

This lecture provides a survey of the aluminium alloys available to the user; it describes their various properties; it gives an insight into the choice of aluminium for a proposed application. In the context of this lecture not every individual alloy and its properties have been treated in detail, but rather divided into alloy types with reference to the most commonly used alloys. For further details on alloy properties the reader is referred to available databanks like ALUSELECT of the European Aluminium Association (EAA) or to the European and national materials standards. Good engineering background in materials, design and manufacturing processes is assumed.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | properties | selection criteria | production | industry | recycled aluminium | secondary aluminium | atomic structure | crystal structure | density | electrical conductivity | resistivity | thermal conductivity | reflectance | non-magnetic | emissivity | corrosion resistance | thermal expansion | melting temperature | latent heat | specific heat | identification | aluminium - copper alloys | aluminium - manganese alloys | aluminium - silicon alloys | aluminium - magnesium alloys | aluminium - magnesium - silicon alloys | aluminium - zinc - magnesium alloys | aluminium - zinc - magnesium - copper alloys | ingot | casting | work hardening | dispersion hardening | solid solution hardening | precipitation hardening | temper designations | non heat-treatable alloys | heat-treatable alloys | applications | mechanical properties | tensile strength | strength/weight ratio | proof stress | elastic properties | elongation | compression | bearing | shear | hardness | ductility | creep | impact strength | elevated temperatures | low temperatures | fracture characteristics | fatigue | corematerials | ukoer

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TALAT Lecture 1501: Properties, Characteristics and Alloys of Aluminium

Description

This lecture provides a survey of the aluminium alloys available to the user; it describes their various properties; it gives an insight into the choice of aluminium for a proposed application. In the context of this lecture not every individual alloy and its properties have been treated in detail, but rather divided into alloy types with reference to the most commonly used alloys. For further details on alloy properties the reader is referred to available databanks like ALUSELECT of the European Aluminium Association (EAA) or to the European and national materials standards. Good engineering background in materials, design and manufacturing processes is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | properties | selection criteria | production | industry | recycled aluminium | secondary aluminium | atomic structure | crystal structure | density | electrical conductivity | resistivity | thermal conductivity | reflectance | non-magnetic | emissivity | corrosion resistance | thermal expansion | melting temperature | latent heat | specific heat | identification | aluminium - copper alloys | aluminium - manganese alloys | aluminium - silicon alloys | aluminium - magnesium alloys | aluminium - magnesium - silicon alloys | aluminium - zinc - magnesium alloys | aluminium - zinc - magnesium - copper alloys | ingot | casting | work hardening | dispersion hardening | solid solution hardening | precipitation hardening | temper designations | non heat-treatable alloys | heat-treatable alloys | applications | mechanical properties | tensile strength | strength/weight ratio | proof stress | elastic properties | elongation | compression | bearing | shear | hardness | ductility | creep | impact strength | elevated temperatures | low temperatures | fracture characteristics | fatigue | corematerials | ukoer | Engineering | H000

License

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3.14 Physical Metallurgy (MIT) 3.14 Physical Metallurgy (MIT)

Description

The central point of this course is to provide a physical basis that links the structure of metals with their properties. With this understanding in hand, the concepts of alloy design and microstructural engineering are also discussed, linking processing and thermodynamics to the structure and properties of metals. The central point of this course is to provide a physical basis that links the structure of metals with their properties. With this understanding in hand, the concepts of alloy design and microstructural engineering are also discussed, linking processing and thermodynamics to the structure and properties of metals.

Subjects

processing | structure | and properties of metals and alloys | processing | structure | and properties of metals and alloys | strength | stiffness | and ductility | strength | stiffness | and ductility | crystallography | defects | microstructure | crystallography | defects | microstructure | phase transformations | phase transformations | microstructural evolution | microstructural evolution | alloy thermodynamics and kinetics | alloy thermodynamics and kinetics | structural engineering alloys | structural engineering alloys | steel | steel | aluminum | aluminum

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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TALAT Lecture 2202: Structural Aluminium Materials

Description

This lecture gives information on the types of aluminium alloys available and the semi-fabrication processes used in their manufacture. The treatment is not detailed and anyone requiring further information will use other TALAT material or the contained references.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | design | product | structural design | pure aluminium | wrought alloys | casting alloys | non-heat treatable alloys | heat treatable alloys | four digit alloy designation system | temper designation | choice of alloy | extrusion | direct extrusion | hydrostatic extrusion | indirect extrusion | sheet | plate | cold rolling | hot rolling | structural applications | availability | cost | heat treatment | solution treatment | corematerials | ukoer

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TALAT Lecture 2202: Structural Aluminium Materials

Description

This lecture gives information on the types of aluminium alloys available and the semi-fabrication processes used in their manufacture. The treatment is not detailed and anyone requiring further information will use other TALAT material or the contained references.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | design | product | structural design | pure aluminium | wrought alloys | casting alloys | non-heat treatable alloys | heat treatable alloys | four digit alloy designation system | temper designation | choice of alloy | extrusion | direct extrusion | hydrostatic extrusion | indirect extrusion | sheet | plate | cold rolling | hot rolling | structural applications | availability | cost | heat treatment | solution treatment | corematerials | ukoer | Engineering | H000

License

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TALAT Lecture 1255: Metallurgical Background to Alloy Selection and Specifications for Wrought, Cast and Special Applications

Description

This lecture outlines the metallurgical principles of alloy selection and specifications. Basic knowledge of physics and chemistry and some familiarity with TALAT lectures 1201 through 1205 is assumed.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | alloy selection | wrought alloys | cast alloys | aerospace alloys | hot isostatic processing | particulate processing | rapid solidification processing | particulate metal matrix composites | Al-Li based alloys | corematerials | ukoer

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TALAT Lecture 1255: Metallurgical Background to Alloy Selection and Specifications for Wrought, Cast and Special Applications

Description

This lecture outlines the metallurgical principles of alloy selection and specifications. Basic knowledge of physics and chemistry and some familiarity with TALAT lectures 1201 through 1205 is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | alloy selection | wrought alloys | cast alloys | aerospace alloys | hot isostatic processing | particulate processing | rapid solidification processing | particulate metal matrix composites | al-li based alloys | corematerials | ukoer | Engineering | H000

License

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3.40J Physical Metallurgy (MIT) 3.40J Physical Metallurgy (MIT)

Description

Discusses structure-property relationships in metallic alloys selected to illustrate some basic concepts of physical metallurgy and alloy design. Fundamentals of annealing, spinodal decomposition, nucleation, growth, and particle coarsening. Concentrates on structure, structure formation, and structure-properties relationships. Also considers structural features: grain size, interstitial and substitutional solutes, precipitates, second-phase particles, and eutectoids. Examples from advanced structural alloys and low-dimensional alloys for magnetic recording media and integrated circuits. Discusses structure-property relationships in metallic alloys selected to illustrate some basic concepts of physical metallurgy and alloy design. Fundamentals of annealing, spinodal decomposition, nucleation, growth, and particle coarsening. Concentrates on structure, structure formation, and structure-properties relationships. Also considers structural features: grain size, interstitial and substitutional solutes, precipitates, second-phase particles, and eutectoids. Examples from advanced structural alloys and low-dimensional alloys for magnetic recording media and integrated circuits.

Subjects

metallic alloys | metallic alloys | physical metallurgy | physical metallurgy | alloy design | alloy design | annealing | annealing | spinodal decomposition | spinodal decomposition | nucleation | nucleation | particle coarsening | particle coarsening | structure | structure | structure formation | structure formation | structure-properties relationships | structure-properties relationships | structural features | structural features | 3.40 | 3.40 | 22.71 | 22.71

License

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TALAT Lecture 4202: Weldability

Description

This lecture describes the important factors governing weldability of aluminium, such as influence of alloying elements, combinations of base material and filler materials and edge preparation for welding. Basic knowledge in metallurgy of aluminium is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | joining | fastening | mechanical | arc welding | weld cracking sensitivity | weldability | solidification | houldcroft test | 6013 t6 alloy | almgsicu | al-si alloys | al-mg alloys | wrought alloys | melting | solidification range | solidification intervals | pre-heating | filler metals | joint vicinity | surface preparation | tig welding | mig welding | corematerials | ukoer | Engineering | H000

License

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TALAT Lecture 5104: Basic Approaches to Prevent Corrosion of Aluminium

Description

This lecture describes important measures for the prevention of corrosion of unprotected, bare aluminium. Basic knowledge of corrosion behaviour of aluminium and some knowledge of the electrochemical nature of corrosion is assumed

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | surface treatment | corrosion resistant alloys | wrought alloys | cast alloys | equipment design | galvanic corrosion | prevention | deposition corrosion | crevice corrosion | stress corrosion | stress corrosion resistant tempers | corrosion inhibitors | environment alteration | cathodic protection | sacrificial anodes | impressed current | alclad alloys | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 4202: Weldability

Description

This lecture describes the important factors governing weldability of aluminium, such as influence of alloying elements, combinations of base material and filler materials and edge preparation for welding. Basic knowledge in metallurgy of aluminium is assumed.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | joining | fastening | mechanical | arc welding | weld cracking sensitivity | weldability | solidification | Houldcroft test | 6013 T6 alloy | AlMgSiCu | Al-Si alloys | Al-Mg alloys | wrought alloys | melting | solidification range | solidification intervals | preheating | filler metals | joint vicinity | surface preparation | TIG welding | MIG welding | corematerials | ukoer

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TALAT Lecture 5104: Basic Approaches to Prevent Corrosion of Aluminium

Description

This lecture describes important measures for the prevention of corrosion of unprotected, bare aluminium. Basic knowledge of corrosion behaviour of aluminium and some knowledge of the electrochemical nature of corrosion is assumed

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | surface treatment | corrosion resistant alloys | wrought alloys | cast alloys | equipment design | galvanic corrosion | prevention | deposition corrosion | crevice corrosion | stress corrosion | stress corrosion resistant tempers | corrosion inhibitors | environment alteration | cathodic protection | sacrificial anodes | impressed current | Alclad alloys | corematerials | ukoer

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TALAT Lecture 3701: Formability Characteristics of Aluminium Sheet

Description

This lecture describes the fundamental formability characteristics of automotive aluminium sheet metals. It aims at learning about the various methods to characterize the forming behaviour and the forming limits. General background in production engineering and sheet metal forming is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | machining | forming | forging | sheet | uniaxial tensile tests | preparing specimens | stress-strain curves | flow curves | strain-hardening exponent n | anisotropy | anisotropic values | rolling direction | vertical anisotropy | polar coordinates | aluminium body sheet alloys | car body sheet alloys | hydraulic bulge test | erichsen cupping test | cup drawing test according to swift | heat-treatable aluminium alloy | blank diameter to thickness ratio | limiting draw ratio | engelhardt drawability | forming limit diagram | fld | corematerials | ukoer | Engineering | H000

License

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TALAT Lecture 1401: Aluminium Powder Metallurgy

Description

This lecture outlines the differences between conventionally produced and powder metallurgy aluminium with respect to potential uses; it aims at learning about the various processes to produce and to consolidate alloy powders; it illustrates the extension of the useful property range beyond that of limits of conventionally processed aluminium alloys; it explains the advantages and disadvantages of aluminium produced by powder metallurgy; it shows the potential of aluminium produced by the route of powder metallurgy. Knowledge in metallurgy, materials science, materials engineering is assumed.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | advanced materials | powder fabrication | rapid solidification | caracterisation | powder | precompaction | cold compaction | sintering | hot consolidation | post consolidation | spray forming | P/M 7 XXX alloys | high strength alloys | elevated temperatures | mechanical alloying | high modulus | safety | corematerials | ukoer

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3.14 Physical Metallurgy (MIT)

Description

The central point of this course is to provide a physical basis that links the structure of metals with their properties. With this understanding in hand, the concepts of alloy design and microstructural engineering are also discussed, linking processing and thermodynamics to the structure and properties of metals.

Subjects

processing | structure | and properties of metals and alloys | strength | stiffness | and ductility | crystallography | defects | microstructure | phase transformations | microstructural evolution | alloy thermodynamics and kinetics | structural engineering alloys | steel | aluminum

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see https://ocw.mit.edu/terms/index.htm

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TALAT Lecture 3701: Formability Characteristics of Aluminium Sheet

Description

This lecture describes the fundamental formability characteristics of automotive aluminium sheet metals. It aims at learning about the various methods to characterize the forming behaviour and the forming limits. General background in production engineering and sheet metal forming is assumed.

Subjects

aluminium | aluminum | european aluminium association | EAA | Training in Aluminium Application Technologies | training | metallurgy | technology | lecture | machining | forming | forging | sheet | uniaxial tensile tests | preparing specimens | stress-strain curves | flow curves | strain-hardening exponent n | anisotropy | anisotropic values | rolling direction | vertical anisotropy | polar coordinates | aluminium body sheet alloys | car body sheet alloys | hydraulic bulge test | Erichsen cupping test | cup drawing test according to Swift | heat-treatable aluminium alloy | blank diameter to thickness ratio | limiting draw ratio | Engelhardt drawability | forming limit diagram | FLD | corematerials | ukoer

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TALAT Lecture 1401: Aluminium Powder Metallurgy

Description

This lecture outlines the differences between conventionally produced and powder metallurgy aluminium with respect to potential uses; it aims at learning about the various processes to produce and to consolidate alloy powders; it illustrates the extension of the useful property range beyond that of limits of conventionally processed aluminium alloys; it explains the advantages and disadvantages of aluminium produced by powder metallurgy; it shows the potential of aluminium produced by the route of powder metallurgy. Knowledge in metallurgy, materials science, materials engineering is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | advanced materials | powder fabrication | rapid solidification | caracterisation | powder | precompaction | cold compaction | sintering | hot consolidation | post consolidation | spray forming | p/m 7 xxx alloys | high strength alloys | elevated temperatures | mechanical alloying | high modulus | safety | corematerials | ukoer | Engineering | H000

License

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3.22 Mechanical Behavior of Materials (MIT) 3.22 Mechanical Behavior of Materials (MIT)

Description

Here we will learn about the mechanical behavior of structures and materials, from the continuum description of properties to the atomistic and molecular mechanisms that confer those properties to all materials. We will cover elastic and plastic deformation, creep, fracture and fatigue of materials including crystalline and amorphous metals, semiconductors, ceramics, and (bio)polymers, and will focus on the design and processing of materials from the atomic to the macroscale to achieve desired mechanical behavior. We will cover special topics in mechanical behavior for material systems of your choice, with reference to current research and publications. Here we will learn about the mechanical behavior of structures and materials, from the continuum description of properties to the atomistic and molecular mechanisms that confer those properties to all materials. We will cover elastic and plastic deformation, creep, fracture and fatigue of materials including crystalline and amorphous metals, semiconductors, ceramics, and (bio)polymers, and will focus on the design and processing of materials from the atomic to the macroscale to achieve desired mechanical behavior. We will cover special topics in mechanical behavior for material systems of your choice, with reference to current research and publications.

Subjects

Phenomenology | Phenomenology | mechanical behavior | mechanical behavior | material structure | material structure | deformation | deformation | failure | failure | elasticity | elasticity | viscoelasticity | viscoelasticity | plasticity | plasticity | creep | creep | fracture | fracture | fatigue | fatigue | metals | metals | semiconductors | semiconductors | ceramics | ceramics | polymers | polymers | microstructure | microstructure | composition | composition | semiconductor diodes | semiconductor diodes | thin films | thin films | carbon nanotubes | carbon nanotubes | battery materials | battery materials | superelastic alloys | superelastic alloys | defect nucleation | defect nucleation | student projects | student projects | viral capsides | viral capsides

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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3.012 Fundamentals of Materials Science (MIT) 3.012 Fundamentals of Materials Science (MIT)

Description

This course focuses on the fundamentals of structure, energetics, and bonding that underpin materials science. It is the introductory lecture class for sophomore students in Materials Science and Engineering, taken with 3.014 and 3.016 to create a unified introduction to the subject. Topics include: an introduction to thermodynamic functions and laws governing equilibrium properties, relating macroscopic behavior to atomistic and molecular models of materials; the role of electronic bonding in determining the energy, structure, and stability of materials; quantum mechanical descriptions of interacting electrons and atoms; materials phenomena, such as heat capacities, phase transformations, and multiphase equilibria to chemical reactions and magnetism; symmetry properties of molecules and s This course focuses on the fundamentals of structure, energetics, and bonding that underpin materials science. It is the introductory lecture class for sophomore students in Materials Science and Engineering, taken with 3.014 and 3.016 to create a unified introduction to the subject. Topics include: an introduction to thermodynamic functions and laws governing equilibrium properties, relating macroscopic behavior to atomistic and molecular models of materials; the role of electronic bonding in determining the energy, structure, and stability of materials; quantum mechanical descriptions of interacting electrons and atoms; materials phenomena, such as heat capacities, phase transformations, and multiphase equilibria to chemical reactions and magnetism; symmetry properties of molecules and s

Subjects

bonding | bonding | energetics | energetics | structure | structure | antibonding | antibonding | hydrogen | hydrogen | Quantum mechanics | Quantum mechanics | electron | electron | atom | atom | molecule | molecule | molecular dynamics | molecular dynamics | MD | MD | Symmetry properties | Symmetry properties | solid | solid | gas | gas | liquid | liquid | phase | phase | matter; molecular geometry | matter; molecular geometry | complex and disordered materials | complex and disordered materials | thermodynamics | thermodynamics | equilibrium property | equilibrium property | macroscopic behavior | macroscopic behavior | molecular model | molecular model | heat capacity | heat capacity | phase transformation | phase transformation | multiphase equilibria | multiphase equilibria | chemical reaction | chemical reaction | magnetism | magnetism | engineered alloy | engineered alloy | electronic and magnetic material | electronic and magnetic material | ionic solid | ionic solid | network solid | network solid | polymer | polymer | biomaterial | biomaterial | glass | glass | liquid crystal | liquid crystal | LCD | LCD | matter | matter | molecular geometry | molecular geometry

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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3.40J Physical Metallurgy (MIT) 3.40J Physical Metallurgy (MIT)

Description

This course examines how the presence of 1-, 2- and 3D defects and second phases control the mechanical, electromagnetic and chemical behavior of metals and alloys. It considers point, line and interfacial defects in the context of structural transformations including annealing, spinodal decomposition, nucleation, growth, and particle coarsening. In addition, it concentrates on structure-function relationships, and in particular how grain size, interstitial and substitutional solid solutions, and second-phase particles impact mechanical and other properties. Examples include microelectronic circuitry, magnetic memory and drug delivery applications. This course examines how the presence of 1-, 2- and 3D defects and second phases control the mechanical, electromagnetic and chemical behavior of metals and alloys. It considers point, line and interfacial defects in the context of structural transformations including annealing, spinodal decomposition, nucleation, growth, and particle coarsening. In addition, it concentrates on structure-function relationships, and in particular how grain size, interstitial and substitutional solid solutions, and second-phase particles impact mechanical and other properties. Examples include microelectronic circuitry, magnetic memory and drug delivery applications.

Subjects

1- | 2- and 3D defects | 1- | 2- and 3D defects | second phases | second phases | mechanical | electromagnetic and chemical behavior of metals and alloys | mechanical | electromagnetic and chemical behavior of metals and alloys | point | line and interfacial defects | point | line and interfacial defects | structural transformations | structural transformations | annealing | annealing | spinodal decomposition | spinodal decomposition | nucleation | nucleation | growth | growth | particle coarsening | particle coarsening | structure-function relationships | structure-function relationships | grain size | grain size | interstitial and substitutional solid solutions | interstitial and substitutional solid solutions | second-phase particles | second-phase particles | microelectronic circuitry | microelectronic circuitry | magnetic memory | magnetic memory | drug delivery applications | drug delivery applications | 3.40 | 3.40 | 22.71 | 22.71

License

Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative Commons License (Attribution-NonCommercial-ShareAlike). For further information see http://ocw.mit.edu/terms/index.htm

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Structures and materials : section 5 major structural materials for aeronautical and automotive structures : presentation transcript

Description

This open educational resource was released through the Higher Education Academy Engineering Subject Centre Open Engineering Resources Pilot project. The project was funded by HEFCE and the JISC/HE Academy UKOER programme.

Subjects

ukoer | engscoer | cc-by | engcetl | loughborough university | higher education | learning | loughboroughunioer | engineering | tta104 | ductile fracture | materials | density chart | structural materials | aeronautic structures | strength | advanced fibre-reinforced polymetric composites | brittle fracture | aluminium alloys | fractures | stiffness | steels | alloys | automotive structures | Engineering | H000

License

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TALAT Lecture 3100: Machining of Products

Description

In general, aluminium alloys have excellent machining properties compared with other common engineering metals.The lecture describes the machinability of aluminium alloys, the necessary tools and equipments in order to obtain optimum results. General background in production engineering and machine tools is assumed.

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | machining | forming | machinability | aluminium chips | surface | tool wear | cutting force | classification | cutting materials | high-speed steel | carbide-tipped tools | diamond | tool design | milling tools | drills | saws | circular saws | wrought alloys | casting alloys | machines | drives | rigidity | spindle construction | control | clamping tools | gripping tools | cooling lubricants | cutting fluids | chip removal | equipment | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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TALAT Lecture 3205: The Fluidity of Molten Metals

Description

This lecture introduces the concept of fluidity of molten metal and its influence on the production of castings. The students will understand the relevance of fluidity, the means by which this is measured and the effect of alloy type. Basic understanding of foundry processes, phase diagrams, basic physics and mathematics background is assumed

Subjects

aluminium | aluminum | european aluminium association | eaa | talat | training in aluminium application technologies | training | metallurgy | technology | lecture | machining | forming | casting | fluidity | solidification rates | short freezing range alloys | long freezing range alloys | impurities | map of fluidity | surface tension | section thickness | concept of continuous fluidity | feeding | corematerials | ukoer | Engineering | H000

License

Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales Attribution-Noncommercial-Share Alike 2.0 UK: England & Wales http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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C

Description

IN718 is a nickel-based superalloy composed of approximately 53 wt% Ni, 19 wt% Fe, 18 wt% Cr, 5 wt% Nb, and small amounts of Ti, Mo, Co, and Al. The alloy has a number of distinct phases present in its microstructure. These are namely the matrix, ?, and the precipitates, ?', ?'', and ?. The primary strengthening phase is ?'' [1], the composition of which is Ni3Nb. It has a body-centred tetragonal structure, and forms semi-coherently as disc-shaped platelets within the ? matrix, having three variants lying on the {100} planes. It is stable for over 10,000 hours at 600C; however, above this temperature it decomposes to form ?', Ni3Al (between 650C and 850C), and ?, the same composition as ?'' (between 750C and 1000C). It has been commented that, at large volum

Subjects

alloy | metal | nickel | nickel-based superalloy | niobium | precipitation | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

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C

Description

IN718 is a nickel-based superalloy composed of approximately 53 wt% Ni, 19 wt% Fe, 18 wt% Cr, 5 wt% Nb, and small amounts of Ti, Mo, Co, and Al. The alloy has a number of distinct phases present in its microstructure. These are namely the matrix, ?, and the precipitates, ?', ?'', and ?. The primary strengthening phase is ?'' [1], the composition of which is Ni3Nb. It has a body-centred tetragonal structure, and forms semi-coherently as disc-shaped platelets within the ? matrix, having three variants lying on the {100} planes. It is stable for over 10,000 hours at 600C; however, above this temperature it decomposes to form ?', Ni3Al (between 650C and 850C), and ?, the same composition as ?'' (between 750C and 1000C). It has been commented that, at large volum

Subjects

alloy | metal | nickel | nickel-based superalloy | niobium | precipitation | DoITPoMS | University of Cambridge | micrograph | corematerials | ukoer

License

http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

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http://core.materials.ac.uk/rss/doitpoms_images.xml

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