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

Sandoval, L (Sandoval, Luis); Urbassek, HM (Urbassek, Herbert M.)

APPLIED PHYSICS LETTERS, 95 (19): Art. No. 191909 NOV 9 2009

DOI: 10.1063/1.3258002

Using molecular dynamics simulations, we study the solid-solid phase transitions induced by strain in Fe nanowires. These show ail intricate dependence oil the crystallographic orientation of the wire < 001 > oriented nanowires exhibit a bcc -> 4cc 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. (C) 2009 American Institute of Physics doi:10.1063/1.3258002

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