Molecular dynamics simulation of stress-induced martensitic phase transformation in NiAl

作者：Cao Li Xia^*; Shang Jia Xiang; Zhang Yue

来源：Acta Physica Sinica, 2009, 58(10): 7307-7312.

DOI：10.7498/aps.58.7307

• martensitic transformation
• NiAl
• molecular dynamics simulation

Molecular dynamics simulations are utilized to study the deformation process in NiAl under uniaxial tension using embedded atom method (EAM) interatomic potential. Both the tensile stress-strain curve and the atomic configurations are analyzed. The martensitic phase transformation is observed and the initial B2 NiAl transforms to a face-centered cubic ordered phase (Ll(0)). The investigation of atomic configuration evolution indicates that the martensitic phase transformation occurs by the propagation and annihilation of {110} twinning planes. The nucleation mechanism of stress induced martensile has also been discussed.

• 出版日期2009-10
• 单位北京航空航天大学