Part IB Materials Science and Metallurgy Course A: Metals & Alloys Professor Harry Bhadeshia Lecture...

Part IBMaterials Science and Metallurgy

Course A: Metals & Alloys

Professor Harry Bhadeshia

Lecture 11: Metallic Alloys

Transformation plasticity

TRIP-Steels

Dual-Phase Steels

Cast Irons

Aluminium alloys

DISPLACIVE

RECONSTRUCTIVE

Olson and Hartman, 1982

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are needed to see this picture.

Displacive transformations can be induced by undercooling.

Martensitic transformation is a deformation accompanied by a change in crystal structure.

Therefore, martensite can be induced by stress.

Bhadeshia, 1982

TRIP-Assisted Steels for Automobiles

TRIP-assisted steel

Bhadeshia, Honeycombe, 2006

R. N. Parkins

Dual-phase ferrite-martensite steels

Bhadeshia, Honeycombe, 2006

Flake graphite, grey cast-iron

Three-dimensional shape of graphite (adapted from Underwood)

Spheroidal graphite cast-iron

Hypoeutectic white cast-iron

DoITPoMS micrograph library

beverage cans Al-Mn or Al-Mn-Mg

solid solution strengthening

precipitation strengthening

Aluminium-lithium alloys

Part IB Materials Science and Metallurgy Course A: Metals & Alloys Professor Harry Bhadeshia Lecture...

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Transcript of Part IB Materials Science and Metallurgy Course A: Metals & Alloys Professor Harry Bhadeshia Lecture...

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