摘要
为了使电磁纯铁获得更低的矫顽力,通过利用Thermol-Calc软件计算相变温度、系列温度退火、光学显微组织观察分析、直流磁性能检测等手段研究合金元素和退火工艺对电磁纯铁矫顽力的影响。结果表明,添加1. 4%Si、1. 0%Mn可使电磁纯铁矫顽力数值降低,继续增加Si、Mn的含量磁性恶化,矫顽力增大,添加0. 1%P对矫顽力几乎没有影响。电磁纯铁相变温度A1为880℃时,在A1-10℃退火矫顽力最低;无相变温度时,高温(1100~1200℃)退火矫顽力最低。含1. 4%Si的电磁纯铁1100℃退火后Hc数值(16. 85 A/m)最低,满足超级电磁纯铁DT4C的矫顽力要求。
In order to make the electromagnetic pure iron obtain lower coerce force,the influence of alloying elements and annealing process on coercitive force of electromagnetic pure iron was studied by using Thermo-Calc software to calculate phase change temperature,serial temperature annealing,optical microstructure observation and analysis,dc magnetic property detection and other methods. The results show that the addition of 1. 4% Si and 1. 0% Mn can reduce the coercibility value of electromagnetic pure iron,while the continuous increase of the content of Si and Mn will deteriorate the magnetism and the coercibility will increase. The addition of 0. 1% P has almost no effect on the coercibility. When the transformation temperature of pure iron is A1( 880 ℃),the coercivity is the lowest when annealing at A1-10 ℃.When there is no phase change temperature,the coercivity is lowest at high temperature( 1100-1200 ℃).Hc value(16. 85 A/m) is the lowest after annealing at 1100 ℃ with 1. 4% Si of pure electromagnetic iron,which meets the coercive force requirements of super-pure electromagnetic iron DT4C.
作者
段美琪
王瑞珍
曹建春
蔡梦茹
葛昕
Duan Meiqi;Wang Ruizhen;Cao Jianchun;Cai Mengru;Ge Xin(Materials Science and Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093,China;Central Iron and Steel Research Institute,Engineering Steel Research Institute,Beijing 100081,China;School of Materials Science and Engineering,Anhui University of Technology,Maanshan Anhui 243000,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2020年第1期130-134,共5页
Heat Treatment of Metals
关键词
合金元素
退火工艺
温度
平均晶粒尺寸
矫顽力
alloying elements
annealing process
temperature
average grain size
coercivity
