Ni-Fe合金磁致伸缩波导丝特性研究  

Research on properties of magnetostriction NiFe alloy for displacement sensor

作　　者：卢云[1] 申蓉[1] 冯哲圣[1] 曹奎[1] 

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

出　　处：《功能材料》2009年第11期1791-1793,共3页Journal of Functional Materials

基　　金："十一五"电子预研基金资助项目(AW020401A)

摘　　要：化学成分对磁致伸缩波导丝的性能产生重要影响。中频感应熔炼技术制备出Ni-Fe磁致伸缩合金铸锭,研究了Ni、Fe含量对合金磁性能、相结构以及合金金相的影响,并分析产生变化的原因。研究表明,提高Ni含量为43%时,合金的磁致伸缩系数最高、磁性γ相强度增强,而矫顽力变化不明显。Chemical composition is one of the important factors for the Ni-Fe alloy magnetostrictive waveguide wire. Ni-Fe alloy is prepared in medium frequency induction furnace, and the effects of the content of Ni and Fe on magnetic performance,phase structure and metallographic about Ni-Fe alloy are presented , and analyze the reasons for these changes. The results indicated that when the content of Ni if 43%, magnetostrictive coeffi- cient and strength of magnetic γ-phase is the best, but the coercivity did not change significantly.

关 键 词：磁致伸缩材料 Ni—Fe合金 磁性能 

分 类 号：TG132.2[一般工业技术—材料科学与工程]