摘要
针对当前电机普遍存在的能源浪费问题进行导磁导电材料的研究,采用感应加热炉熔炼炉制备Fe-Cu合金,对合金进行正火、淬火+回火处理,通过金相显微镜、扫描电镜等对其微观组织观察研究,并测试其硬度、冲击韧性等力学性能和电磁性能.结果表明,Fe-Cu合金的基体为铁素体,Cu主要分布在奥氏体晶界处.热处理后合金的硬度和冲击韧性发生了变化,随着Cu质量分数的增加,磁导率和电阻率降低,Fe-20%Cu合金的组织均匀,电阻率、起动转矩比常用电机材料铸铝大,满足电机对导磁导电材料的使用要求.
Regarding to the common energy wastage problem of motor, the research on the magnetic and elec- tric conductive material has been operated. Several Fe-Cu alloys with different chemical compositions were prepared by induction heating in this paper. After normalizing, quenching and tempering, the microstructure was observed by optical microscope and scanning electron microscope, and the mechanical and electromagnetic properties were tested. The results show that the matrix of Fe-Cu alloy is mainly ferrite, and the copper mainly distributes in the austenite boundaries. After heating treatment, the hardness and impact toughness are changed. With the increasing of Cu quality fraction, the magnetic conductance and resistivity drop; The microstructure of Fe -20% Cu alloy is uniform, and the resistivity and starting torque are bigger than those of the common motor materials cast alumi- num alloy, which can meet the motor requirements of the magnetic and electric conductive material.
出处
《哈尔滨理工大学学报》
CAS
2012年第3期5-9,共5页
Journal of Harbin University of Science and Technology
基金
国家自然科学基金青年科学基金(50907015)
关键词
Fe—Cu合金
微观组织
力学性能
电磁性能
Fe-Cu alloy
microstructure
mechanical property
electromagnetic property
