Reconstructive and Displacive Phase Transformations: Part III
Channel: bhadeshia123
Date: 2011-10-28

Solid-state phase transformation mechanisms in pure iron. How does one distinguish between a diffusionless martensitic transformation and a diffusional transformation to ferrite when it occurs in a pure substance? There is no change in chemical composition in both cases. The concept of "reconstructive diffusion" is introduced.


The debate on the mechanism of soiid-state phase transformations is explored in this movie, which is the third in a series which examines the choreography of atoms and their implications.

More information on

http://www.phase-trans.msm.cam.ac.uk/abstracts/progress.html