Si含量对FeSi合金棒材性能的影响  

Effect of Si Content on the Properties of Fe-Si Soft Magnetic Alloy Rod

作　　者：雷成辉[1] 李占青[1] 

机构地区：[1]北京北冶功能材料有限公司,北京100192

出　　处：《金属材料研究》2016年第2期21-26,共6页Research on Metallic Materials

摘　　要：本文对FeSi合金棒材进行了研究，开展了不同Si含量对合金磁性能、力学性能、电阻率及组织的影响规律研究。研究表明，在FeSi合金中，随着Si含量的增加，合金的饱和磁感应强度降低，合金的最大磁导率和矫顽力呈下降趋势、合金的硬度、强度和电阻率增加；结合组织分析，认为Si含量的增加，晶界处析出的弥散细小的析出物数量增加，导致合金的强度、硬度增加。In this paper, effect of Si content of Fe-Si alloy on magnetic property, mechan- ical property, resistance as well as mierostructures has been investigated. The results shown that with an increase of Si contents in Fe-Si alloy, there is a decrease of saturation induction, maximum permeability and coercive force. Meanwhile, there is an increase of hardness, ten- sile strength and electric resistivity of Fe-Si alloy. Based on the microstrueture observed by OM and SEM, it is considered that the increase of hardness and tensile strength may be asso- ciated with an increasing quantity of fine carbide particles precipitated along the grain boundary.

关 键 词：FeSi合金 磁学性能 力学性能 电阻率 析出相 

分 类 号：TG131[一般工业技术—材料科学与工程]