J. Phys. IV France 112 (2003) 393
Effects of cobalt content on martensitic transformation and shape memory effect in Fe-Mn-Si-Cr-Ni alloysB. Jiang, K. Xu, X. Qi and W. Zhou
Key Laboratory for High Temperature Materials & Tests of Ministry of Education, Shanghai, Jiaotong University, Shanghai 200030, China
The effects of cobalt content on the stacking fault probability ( Psf) determined by means of X-ray diffraction profile analysis and associated with the starting temperature of transformation ( MS) and the strain-hardening exponent ( n) etc, have been investigated in Fe-Mn-Si-Cr-Ni based alloys with four different contents of Co from 0.39% to 3.93% (wt). The results show that Ms and n increase with increasing Co content which is related to the increase of the stacking fault probability owing to the addition of cobalt. Addition of proper content of cobalt in Fe-Mn-Si-Cr-Ni alloy can improve its SME.
© EDP Sciences 2003