东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2005, Vol. 26 ›› Issue (11): 57-60.DOI: -

• 论著 • 上一篇    下一篇

原位自生(Ti;W)C颗粒增强铁基复合材料的组织研究

潘卫东;任英磊;才庆魁;邱克强   

  1. 东北大学材料与冶金学院;沈阳工业大学材料科学与工程学院;沈阳大学材料科学与工程系;沈阳工业大学材料科学与工程学院 辽宁沈阳110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2005-11-15 发布日期:2013-06-24
  • 通讯作者: Pan, W.-D.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50071036);;

Microstructure investigation on in-situ synthesis of (Ti,W)C reinforced iron-based composite

Pan, Wei-Dong (1); Ren, Ying-Lei (2); Cai, Qing-Kui (3); Qiu, Ke-Qiang (2)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) School of Materials and Engineering, Shenyang University of Technology, Shenyang 110023, China; (3) Department of Materials Science and Engineering, Shenyang University, Shenyang 110044, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2005-11-15 Published:2013-06-24
  • Contact: Pan, W.-D.
  • About author:-
  • Supported by:
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摘要： 采用中频感应电炉熔炼Fe-W,Fe-Ti和Fe-C合金,通过控制熔炼温度、熔炼时间获得了(Ti,W)C/Fe复合材料,采用扫描电镜分析了复合材料的微观结构,利用X射线分析了相组成.结果表明,提高熔炼温度或延长熔炼时间可保证熔体中(Ti,W)C的充分形成,同时通过适当提高冷却速率可获得(Ti,W)C作为惟一增强相的Fe基复合材料.(Ti,W)C比较均匀地分布在熔体中,减小与熔体间的密度差,因此可获得比较均匀的凝固组织.

关键词: Fe基复合材料, 组织结构, 碳化物, 强化, 原位生长

Abstract: The in-situ synthesis of 10 vol% (TiW)C-Fe composite was investigated by melting the Fe-W, Fe-Ti and Fe-C alloys with melting temperature and time controlled. The microstructure and phase composition were checked by employing SEM and XRD with Cu Kα radiation. The results showed that (Ti,W)C particles, as the only ones, can form reinforcement when the alloy is melted at higher temperature and/or longer time by properly controlling solidification rate. (Ti,W)C particles are evenly distributed in the matrix due to the lower mismatched densities between (Ti,W)C particles and liquid metal.

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