Microstructure and phase transformation of Ni_(56)Fe_(x)Ga_(44-x)(15≤x≤20)alloys  

作　　者：Cui-Fang Dong Jing-Min Wang 

机构地区：[1]Laboratory of Aerospace Materials and Performance(Ministry of Education),School of Materials Science and Engineering,Beihang University,Beijing 100191,China

出　　处：《Rare Metals》2024年第11期6048-6053,共6页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundations of China(Nos.513311001,51520105002);the Fundamental Research Funds for Central Universities。

摘　　要：Ni_(56)Fe_(x)Ga_(44-x)(15≤x≤20)alloys were studied with the phase structure and magnetic properties.The martensitic transformation was observed over the whole composition range.The martensitic transformation starting temperature(M_(s))increases from 256 K for x=15 to 350 K for x=18 and then decreases from 350 K for x=18 to333 K for x=20 by increasing substitution of Fe for Ga.The austenitic Curie temperature((?))is observed for15≤x≤16 and 18≤x≤20,respectively.And the martensitic Curie temperature(T^(A)_(X))is observed for x=17.For 18<x<20,the austenitic Curie temperature(T^(A)_(C))is detected at about 499 K,resulting in a relationship between martensite transformation temperature and Curie temperature as T^(A)_(C)<M_(s).For x=17,the relationship between martensite transformation temperature and Curie temperature is T^(A)_(C)<M_(s).

关 键 词：Ni-Fe-Ga DUAL-PHASE Martensitic transformation Magnetic transition 

分 类 号：TG139.6[一般工业技术—材料科学与工程]