合金元素对烧结Nd-Fe-B磁体磁性能的影响  

The Effects of Alloying Element on Magnetic Properties of Sintered Nd-Fe-B Magnets

作　　者：文雪萍[1] 易健宏[1] 胡礼福[1] 吕豫湘[1] 彭元东[1] 李丽娅[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,长沙410083

出　　处：《金属功能材料》2005年第1期21-25,共5页Metallic Functional Materials

摘　　要：简述了两类合金元素 (代换元素 :Co ,Dy或Tb与掺杂元素 :M 1(低熔点元素 ) :Cu ,Al,Ga ,Sn ,Ge ,Zn等与M2 (高熔点元素 ) :Nb ,Mo ,W ,Zr,Ti,V ,Cr等 )的添加对烧结Nd -Fe -B永磁合金的显微结构和磁性能的影响。综述了两种合金化方式 (传统合金化方式 :在熔炼前加入合金元素 ;晶间合金化方式 :在球磨或气流磨前加入合金元素 )对烧结Nd- Fe- B磁体显微结构和磁性能的不同影响 ;最后指出晶间合金化复合添加方式是一种很有前景的生产高性能Nd -Fe- B磁体的方法。The effects of two kinds of elements (substituent:Co, Dy or Tb and dopant elements:M1(low-melt ing elements):Cu,Al,Ga,Sn,Ge,Zn an d M2(high-melting elements):Nb,Mo, W,Zr,Ti,V,Cr)on microstructure and magnetic properties of sintered Nd -Fe-B permanent magnets are briefl y reviwed. The different effects of two kinds of adding methods(conven tional alloying technique:alloying elements added before melting and intergranular alloying technique:a lloying elements added before ball -milling or jet-milling)on sintere d Nd-Fe-B magnets are summarizedF inally,it is concluded that interg ranular alloying technique of blen ding additives is a kind of promi sing method to produce high performance Nd-Fe-B ma gnets

关 键 词：磁性能 烧结ND-FE-B磁体 Nd-Fe-B永磁合金 掺杂元素 合金元素 球磨 显微结构 合金化 熔炼 低熔点 

分 类 号：TM271[一般工业技术—材料科学与工程]