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  5. Martensitic transformation behaviors in Ni-Mn-Ga ternary system based on phase equilibria investigat

Martensitic transformation behaviors in Ni-Mn-Ga ternary system based on phase equilibria investigat

来源 :第十六届全国相图学术会议暨相图与材料设计国际研讨会 | 被引量 : 0次 | 上传用户：pyh333
【摘 要】
：
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 w
【作 者】
：
S.Y. Yang C.P. Wang X.J. Liu 
【机 构】
：
College of Materials,Xiamen University,Xiamen 361005,PR China
【出 处】
：
第十六届全国相图学术会议暨相图与材料设计国际研讨会
【发表日期】
：
2012年10期
【关键词】
：
Ni-Mn-Ga Phase diagrams Martensitic transformations Microstructure 
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　　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.
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