铁钼粉末冶金抗磨材料次表面亚稳相的XRD分析  

XRD Analysis of Fe-C Metastable Phase in Subsurface Layers of Fe-Mo Powder Metallurgy Antiwear Material

作　　者：何荔[1] 王钧安[1] 丛秋滋[1] 

机构地区：[1]中国科学院兰州化学物理研究所固体润滑开放研究试验室,甘肃兰州730000

出　　处：《分析测试学报》2003年第1期91-93,共3页Journal of Instrumental Analysis

摘　　要：在一台普通的二圆X射线衍射仪上 ,利用不对称布拉格反射STD(试样相对于入射线倾斜在某一角度α0,进行2θ扫描 )技术与常规CBD(正常的θ/2θ偶合扫描 )模式相结合的方法 ,对铁钼粉末冶金抗磨材料的摩擦表层、次表面层及体相的物相纵向进行了较全面分析 ,特别揭示了摩擦次表面层Fe -C亚稳相的存在 。The asymmetrical Bragg reflection STD(sample tilting diffraction) scan mode coupled with conventional X _ ray diffraction CBD(conventional Bragg diffraction) mode is used to determine phase composition of Fe-Mo powder metallurgy antiwear material with a conventional X _ ray diffractometer. The result showed that the subsurface layers below the Fe-Mo powder metallurgy material surface after friction appeared an Fe-C metastable phase. It affects seriously the properties of the Fe-Mo powder metallurgy antiwear material.

关 键 词：次表面 亚稳相 XRD X射线衍射 铁钼粉末冶金材料 抗磨材料 

分 类 号：TF122[冶金工程—粉末冶金]