Plasticity of metals and alloys

This unit introduces the most important mechanical properties of engineering alloys and explores the relationship between these properties, the microstructure, and the mechanisms of plastic deformation. The properties considered will include the yield strength, strain hardening, ultimate tensile strength, fracture, creep, fatigue and wear.

Particular emphasis is placed on the role of dislocations and twins as the dominant actors controlling plastic deformation in metals and alloys. The interaction between dislocation/twins and the microstructure is emphasised.

You will develop a detailed and quantitative understanding of the relationship between the mechanical properties of engineering alloys and their microstructure and learn how to design microstructures to optimise different properties.