Transformation pathways in the solid-solid phase transitions of iron nanowires

Sandoval, Luis; Urbassek, Herbert M.
November 2009
Applied Physics Letters;11/9/2009, Vol. 95 Issue 19, p191909
Academic Journal
Using molecular dynamics simulations, we study the solid-solid phase transitions induced by strain in Fe nanowires. These show an intricate dependence on the crystallographic orientation of the wire. <001> oriented nanowires exhibit a bcc→fcc transition and preferably follow the Nishiyama–Wassermann path. In <011> and <111> oriented nanowires the transformation is bcc→hcp and proceeds according to the Burgers path. Additionally we show that it is possible to obtain multiple phase transitions accompanied with reorientations.


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