J. Phys. IV France
Volume 112, October 2003
Page(s) 743 - 746

J. Phys. IV France
112 (2003) 743
DOI: 10.1051/jp4:2003989

The role of (001) microtwinning played during the deformation of stress induced martensite in Ti-Ni-Nb shape memory alloy

Y.F. Zheng, W. Cai and L.C. Zhao

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

The deformation morphologies and mechanisms of (001) microtwinning in the stress induced martensite in the Ti-Ni-Nb alloy tensioned to different extents at its parent phase condition have been investigated using Conventional Transmission Electron Microscope (CTEM) and High Resolution Electron Microscope (HREM) observations. It had been found that (001) microtwinning plays an important role in both the coalescence and reorientation of martensite substructural bands. The corresponding micro-mechanisms were discussed.

© EDP Sciences 2003