岳超华,张群,黄羚惠,陈曦,蒋建清,涂益友.合金元素对单相渗碳体磁性粉体制备及性能的影响[J].稀有金属材料与工程,2021,50(1):167~171.[Yue Chaohua,Zhang Qun,Huang Linghui,Chen Xi,Jiang Jianqing,Tu Yiyou.Effect of alloying elements on single-phase cementite prepared by mechanical alloying[J].Rare Metal Materials and Engineering,2021,50(1):167~171.]
合金元素对单相渗碳体磁性粉体制备及性能的影响
投稿时间:2020-01-08  修订日期:2020-02-12
中文关键词:  机械合金化  渗碳体  磁学性能  第一性原理
基金项目:国家自然科学青年基金资助(项目号51201031)
中文摘要:
      本文通过机械合金化和真空退火热处理的方法制备了单相渗碳体粉末,并结合第一性原理计算,分析了Mn、Cr和Si对合金渗碳体的成相能力及渗碳体磁学性能的影响。结果表明,机械合金化+600℃真空热处理可获得单相渗碳体。Si的加入完全抑制了渗碳体的生成,而加入Mn、Cr对渗碳体生成有促进作用。Cr、Mn合金化的渗碳体的粉末饱和磁化强度及矫顽力较未合金化时均较纯Fe3C均有所降低,且Cr元素产生的降低幅度的影响更大。合金渗碳体中Cr-C,Mn-C,Fe-C化学键合强度依次增强,Cr、Mn合金化渗碳体的结构稳定性优于纯Fe3C。
Effect of alloying elements on single-phase cementite prepared by mechanical alloying
英文关键词:mechanical alloying  cementite  magnetic properties  first principles
英文摘要:
      In this paper, single-phase cementite powders are prepared by mechanical alloying and vacuum annealing heat treatment methods. Combined with first-principles calculations, the effects of Mn, Cr, and Si on the phase formation ability and magnetic properties of cementite are analyzed. It has been found that single-phase cementite can be obtained by mechanical alloying + 600 ° C vacuum heat treatment. The addition of Si completely inhibited the formation of cementite, while the addition of Mn and Cr could promote the formation of cementite. The saturation magnetization and coercive force of Cr and Mn alloyed cementite are lower than those of pure Fe3C when unalloyed, and the effect of the reduction range caused by the Cr element is greater.
作者单位E-mail
岳超华 东南大学 ychaohua5920@163.com 
张群 东南大学  
黄羚惠 东南大学  
陈曦 东南大学  
蒋建清 南京林业大学  
涂益友 东南大学  
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