姜吉鹏,李世波,胡树郡,张京,姚伯祥,陆晓刚,于文波,周洋.添加TiC对高铬铸铁性能的影响[J].稀有金属材料与工程,2020,49(2):701~704.[Jiang Jipeng,Li Shibo,Hu Shujun,Zhang Jing,Yao Boxiang,Lu Xiaogang,Yu Wenbo,Zhou Yang.Effects of added TiC on properties of high chromium white iron[J].Rare Metal Materials and Engineering,2020,49(2):701~704.]
添加TiC对高铬铸铁性能的影响
投稿时间:2019-03-08  修订日期:2019-03-08
中文关键词:  TiC/HCWI复合材料  微观结构  力学性能  抗磨性能
基金项目:国家自然科学基金资助(项目号51772020)
中文摘要:
      以TiC粉和高铬铸铁粉(high chromium white iron, 简称HCWI)为原料通过热压烧结制备了TiC增强高铬铸铁(TiC/HCWI)复合材料,研究了TiC增强相对HCWI的微观组织、物相组成、力学性能、抗磨性能的影响。结果表明,添加的TiC颗粒抑制了HCWI材料中M7C3(M=Fe, Cr)碳化物的生长,细化了HCWI的微观结构。随着TiC含量的增加,TiC/HCWI复合材料的洛氏硬度、断裂韧性、弯曲强度和抗磨性能增加。利用x-射线衍射和电子扫描电镜分别对复合材料的物相组成和微观结构进行了表征;对复合材料的增强机制进行了分析。
Effects of added TiC on properties of high chromium white iron
英文关键词:TiC/HCWI composites  microstructure  mechanical properties  wear resistance
英文摘要:
      High chromium white iron composites reinforced with TiC (TiC/HCWI) were prepared by hot pressing of TiC and high chromium white iron (HCWI) powders. The effects of TiC on microstructure, phase composition, mechanical properties and wear resistance of TiC/HCWI were studied. Results showed that the growth of M7C3(M = Fe, Cr) in HCWI was effectively inhibited by TiC grains, refining the microstructure of HCWI. Rockwell hardness, fracture toughness, flexural strength and wear resistance of the fabricated composites increased with increasing the content of TiC. X-ray diffraction analysis and scanning electron scope were used to characterize the phase composition and microstructure of composites. The reinforcing mechanism of TiC was analyzed.
作者单位E-mail
姜吉鹏 北京交通大学 17116364@bjtu.edu.cn 
李世波 北京交通大学  
胡树郡 北京交通大学  
张京 北京交通大学  
姚伯祥 北京交通大学  
陆晓刚 北京交通大学  
于文波 北京交通大学  
周洋 北京交通大学  
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