Martensitic transformation behaviors in Ni-Mn-Ga ternary system based on phase equilibria investigation
Phase equilibria of Ni-Mn-Ga ternary system at 800 ℃ and 900 ℃ were experimentally investigated by the diffusion couples (DCs) and equilibrated alloys.The results show that the bcc phase possesses a wide composition range at high temperature.The liquid and bcc phases extend to the Ni-Mn side and the region of bcc phase becomes longer and narrower with increasing temperature.Based on the obtained information of phase equilibria,the composition dependence of martensitic transformation on the composition region of Ni2MnGa alloys was discussed.
Ni-Mn-Ga Phase diagrams Martensitic transformations Microstructure
S.Y. Yang C.P. Wang X.J. Liu
College of Materials,Xiamen University,Xiamen 361005,PR China
国内会议
常州
英文
207-207
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）