烧结NdFeB永磁体的腐蚀性研究现状  

Research Status of Corrosion Property of Sintered NdFeB Permanent Magnet

作　　者：孔祥薇[1] 刘国征[1] 赵明静[1] 赵瑞金[2] 鲁富强[2] 武斌[2] 

机构地区：[1]包头稀土研究院,内蒙古包头014030 [2]稀土冶金及功能材料国家工程研究中心,内蒙古包头014030

出　　处：《稀土》2013年第6期69-76,共8页Chinese Rare Earths

摘　　要：综述了在不同因素影响下的烧结钕铁硼永磁体的腐蚀行为,影响因素包括:环境温度、湿度、气体组成、水溶液pH值,以及磁体磁化状态、密度及富钕相分布、成分组成等。提高磁体密度,使富钕相均匀分布以及添加合金元素,都可以有效提高磁体的抗腐蚀性。This paper reviews corrosion of sintered NdFeB permanent magnet under different affecting factors. These fac- tors include environment temperature, humidity, gas composition, pH value of solution, and magnetization state of magnet, densi- ty and distribution of Nd - rich phase, composition of magnet. Improving density of magnet, making Nd - rich phase distribute uniformly and adding alloying elements can enhance effectively corrosion resistance of sintered NdFeB permanent magnet.

关 键 词：烧结钕铁硼 腐蚀行为 环境湿度 合金元素 

分 类 号：TG132.2[一般工业技术—材料科学与工程] TG178[金属学及工艺—合金]