Lattice distortion and atomic displacements during the fcc/bcc martensitic transformation
Materials Science
2015-06-23 v3
Abstract
From our previous models of martensitic transformation, the continuous matrices of atomic displacements and lattice deformations from face-centred-cubic (fcc) to body centred-cubic (bcc) phases are calculated in agreement with different possible final orientation relationships, such as Bain, Pitsch and Kurdjumov-Sachs (KS). The angular distortion introduced in the calculations appears a natural order parameter of transition. The distortion corresponding to KS is the only one that respects the parallelism of a dense direction and of a dense plane of both the fcc and bcc phases. This paper gives an alternative to the classical crystallographic theories and shear concepts associated to martensitic transformations.
Keywords
Cite
@article{arxiv.1407.1468,
title = {Lattice distortion and atomic displacements during the fcc/bcc martensitic transformation},
author = {Cyril Cayron},
journal= {arXiv preprint arXiv:1407.1468},
year = {2015}
}