Atomistic study of nanotwins in NiTi shape memory alloys

Journal Article (Journal Article)

Atomistic simulations are performed to study the structure and geometrical limit of nanoscale twins in NiTi shape memory alloys. We analyze compound twins as narrow as ∼1 nm, involving a few atomic layers. A novel nanotwinned structure is found, forming through the martensitic transformation of sublattices. We predict the temperatures of phase transformation, which are consistent with experimental measurements. The results provide an atomistic basis for further study of nanometer length scale effects on the martensitic phase transformation and shape memory behavior. © 2011 American Institute of Physics.

Full Text

Duke Authors

Cited Authors

  • Zhong, Y; Gall, K; Zhu, T

Published Date

  • August 1, 2011

Published In

Volume / Issue

  • 110 / 3

International Standard Serial Number (ISSN)

  • 0021-8979

Digital Object Identifier (DOI)

  • 10.1063/1.3621429

Citation Source

  • Scopus