Sm_2Co_(17)型永磁材料金相样品的腐蚀条件研究  

Studies on corrosion conditions of metallographic sample of Sm_2Co_(17) permanent magnet materials

作　　者：赖维明[1] 包生祥[1] 张晓雯[2] 王祖文[2] 程玲莉[3] 张明[3] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054 [2]中国国防科技信息中心,北京100142 [3]西南应用磁学研究所,四川绵阳621000

出　　处：《磁性材料及器件》2012年第4期63-65,共3页Journal of Magnetic Materials and Devices

基　　金：总装备部军用电子元器件"共性与支撑"项目

摘　　要：用三种金相腐蚀剂和不同的腐蚀时间对Sm2Co17型永磁材料进行腐蚀,通过扫描电子显微镜(SEM)结合X射线能谱仪(EDS)对Sm2Co17型永磁材料的金相腐蚀条件进行了研究。结果表明,0.5ml硝酸、2ml乙酸、100ml蒸馏水的配比,腐蚀60s能清晰显示晶界、晶粒表面以及晶粒中的富Zr和富Sm析出相。与最常用金属材料腐蚀剂和金相腐蚀手册提供的配方腐蚀剂相比,本实验确定的腐蚀条件得到的金相SEM照片更为清晰。Sm2Co17 type permanent magnet materials were corroded under three kinds of corrosion conditions. Scanning electron microscopy and energy dispersive X-ray spectrometer were used to study the metallographic corrosion conditions. The result showed that sample corroded for 60 seconds in corrosive liquid of 100ml distilled water dissoled in 0.Sml nitric acid and 2rnl acetic acid can clearly display boundary, surface of grain, and Zr-rich and Sm-rich phase in the grain. Compared with the corrosion agent most commonly used to metal material and the formula from metallographic corrosion handbook, the corrosion agent determined in this research can get a more clearly metatllographic image.

关 键 词：Sm2Co17永磁材料 扫描电镜 金相腐蚀 腐蚀条件 

分 类 号：TM273[一般工业技术—材料科学与工程] TG115[电气工程—电工理论与新技术]