放电等离子体烧结FePt合金的微观结构和磁学性能（英文）  

The Microstructure and Magnetic Properties of FePt Alloys Prepared by Spark Plasma Sintering

作　　者：王传军[1] 张俊敏[1] 谭志龙[1] 毕珺[1] 闻明[1] 管伟明[1] 周砚田 

机构地区：[1]昆明贵金属研究所稀贵金属综合利用国家重点实验室,昆明650221 [2]瓦房店轴承股份有限公司,辽宁瓦房店116300

出　　处：《贵金属》2015年第2期19-22,共4页Precious Metals

基　　金：云南省基金面上项目(2011FB125)

摘　　要：采用熔炼、机械破碎和放电等离子体烧结法制备了Fe50Pt50合金,研究了合金的微观结构和磁学性能。结果表明在烧结过程中合金中无序的面心立方相向有序的L10有序相转变,Fe50Pt50合金的有序度和矫顽力随着放电等离子体烧结温度的升高而降低;在800℃烧结时,可获得的最大磁能积为50.81 kJ/m3。Fe50Pt50 alloys were prepared by melting, milling and spark plasma sintering （SPS）, the microstructure and magnetic properties of the alloys were analyzed. The results show that the alloy will transform into L10 ordered fcc phase from disordered fcc phase during sintering. The degree of order and the coercivity of FesoPts0 alloys decreases as the SPS temperature rises from 700℃ to 900℃. A maximum magnetic energy product of 50.81 kJ/ma can be obtained for the alloy sintered at 800℃.

关 键 词：金属材料 FePt合金 放电等离子烧结 矫顽力 X射线衍射 

分 类 号：TG146.33[一般工业技术—材料科学与工程]