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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(英文),2021,50(1):167~171.[Yue Chaohua,Zhang Qun,Huang Linghui,Chen Xi,Jiang Jianqing and 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.]
Effect of alloying elements on single-phase cementite prepared by mechanical alloying
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Received:January 08, 2020  
DOI:
Key words: mechanical alloying  cementite  magnetic properties  first principles
Foundation item:国家自然科学青年基金资助(项目号51201031)
Author NameAffiliation
Yue Chaohua,Zhang Qun,Huang Linghui,Chen Xi,Jiang Jianqing and Tu Yiyou  
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Abstract:
      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.