热处理对Fe_(69.07)Ni_(29.25)Mn_(0.615)Si_(0.50)C_(0.50)磁温度补偿合金热磁性能和微观结构的影响  

Effect of heat treatment on thermal magnetic performances and microstructure of Fe_(69.07)Ni_(29.25)Mn_(0.615)Si_(0.50)C_(0.50)magnetic temperature compensation alloy

作　　者：李平[1] 曲选辉[1] 敖晖[1] 

机构地区：[1]北京科技大学材料科学与工程学院新金属材料国家重点实验室,北京100083

出　　处：《功能材料》2005年第12期1859-1861,共3页Journal of Functional Materials

基　　金：高等学校博士学科重点专项科研基金资助项目(20040008015);国家重点基础研究发展计划(973计划)资助项目(TG2000067203)

摘　　要：研究了热处理工艺对Fe69.07Ni29.25Mn0.615Si0.50C0.50磁温度补偿合金的组织结构和热磁性能的影响,采用X射线衍射仪及金相显微镜分析其相结构和组织形貌。结果表明热处理工艺对磁温度补偿合金的热磁性能有较大影响;随热处理温度、时间增加,合金由α、γ双相结构变为γ单相结构;具有优良热磁性能的磁温度补偿合金的结构组织应为γ单相面心立方结构,大的晶粒尺寸、少的内部缺陷和低的内应力。Effect of heat treatment on thermal magnetic performances and microstructure of Fe60.07 Ni20.25 Mn0.615 Si0.50 C0.50 magnetic temperature compensation alloy was investigated. The phase composition and microstructure of the alloy were characterized by XRD and optical microscope. The results show that the heat treatment has a significant effect on the thermal magnetic performances of magnetic temperature compensative alloys, the alloy exhibit a structure change from α＋γ two-phase toγsingle-phase structure with the increase of heat treatment time and temperature;A certain amount of texture is found in the untreated forge alloy,and the amount of the texture in the heat-treatmented sample decreases. The magnetic temperature compensative alloy with good thermal magnetic performance should be of γ single phase with FCC structure, large grain size,less inherent defect and low internal stress.

关 键 词：磁温度补偿合金 热磁性能 热处理 

分 类 号：TM273[一般工业技术—材料科学与工程]