摘要
以钛粉、铁粉、钨铁粉、石墨等为原料,原位烧结合成了35%(Ti,W)C/Fe复合材料,并用扫描电镜、X射线衍射等测试方法对试样进行了组织结构分析。结果表明:复合材料的相组成为-αFe固溶体、Fe3W3C、(Ti,W)C和少量TiC;原位合成的硬质相(Ti,W)C颗粒形状多为球形,粒径小于1μm;该复合材料的洛氏硬度达到59 HRC;磨损试验显示其耐磨性是高铬铸铁的5~6倍。
(Ti,W)C/Fe composite was in-situ synthesized by sintering compact of mixed titanium,iron,ferrotungsten and carbon powders.The microstructure of composite was analyzed by scanning electron microscopy and X-ray diffraction.The results show that the composite consiste of α-Fe,Fe3W3C,(Ti,W)C and TiC.(Ti,W)C particles Are spherical with the size below 1 μm.The Rockwell hardness of the composite is 59 HRC.The wear-resisting property of the composite is 5-6 times of high-chromium cast-iron.
出处
《机械工程材料》
CAS
CSCD
北大核心
2008年第1期40-43,共4页
Materials For Mechanical Engineering
基金
科技部中小型企业技术创新基金资助项目(01C26225111100955)
关键词
原位合成
粉末冶金
(Ti
W)C
耐磨性
in-situ synthesis
powder metallurgy
（Ti
W）C
wear-resisting property
