Materials Science and Metallurgy Course A: Metals & Alloys

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Materials Science and Metallurgy Course A: Metals & Alloys

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Presentation transcript:

Materials Science and Metallurgy Course A: Metals & Alloys Part IB Materials Science and Metallurgy Course A: Metals & Alloys Professor Harry Bhadeshia Lecture 9: Twins & Martensite

annealing twin

deformation twins in zinc DoITPoMS micrograph library

Explosively deformed Fe-0.2C wt% DoITPoMS micrograph library

Frommeyer, Brüx, Neumann Fe-25Mn-3Si-3Al wt% Frommeyer, Brüx, Neumann

hexagonal close-packed cubic close-packed

body-centred cubic (ferrite) cubic close-packed (austenite)

Indium: tetragonal I

50 mm