Aspects of carbide precipitation in steels, Harry Bhadeshia, Lecture 25 of 25
Channel: bhadeshia123
Date: 2021-12-19

Lecture 25 of 25, by Professor Harry Bhadeshia,   in the series "Steel Research: A global journey",  organised by Adreil Wong, Dominik Dziedzic and Steve Ooi to mark the retirement of Harry Bhadeshia. 

The atomic mechanism of carbide precipitation in steels is explored, with a focus on explaining whether or not, the carbides form by a paraequilibrium displacive mechanism in circumstances where the mobility of large atoms is limited. Cementite, epsilon carbide, chi carbide, eta carbide, iron nitride, molybdenum carbide, vanadium carbide and titanium carbide are all discussed. The crystallographic method used is able to determine unambiguously, the atomic mechanisms of transformation. The deformation-induced transformation of carbides is also discussed.

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