摘要
提出了一种扫描电镜准动态观察磨损表面形貌的方法——定位间断观察法．通过坐标定位和形貌特征定位，可简便、准确地确定跟踪观察位置．将试样表面的摩擦方向垂直于电子束的行扫描方向并使试样表面适度倾向二次电子探测器，可提高观察和拍摄效果．利用该方法观察了一种高铬铸铁中的（Ｆｅ，Ｃｒ）７Ｃ３碳化物与ＳｉＣ磨粒干滑动摩擦过程中的形貌演变．
An in situ quasidynamic observing method for the morphology evolution of the wear surface by a scanning electron microscope (SEM) was proposed. This method was capable of positioning and observing discontinuously the wear surface and had no the limitation of the stationary and in-situ dynamic observing methods. By constructing the coordinate system on the specimen surface and positioning according to the coordinate and morphological characteristics,the tested position could be determined conveniently and precisely. Making the friction direction vertical to the line scanning direction of the electron beam and the specimen surface slant properly to the secondary electron detector (SED), the effect of the observing and photographing could be improved. The morphology evolution of the carbides (Fe,Cr) 7C 3 in high chromium cast iron sliding against fixed SiC particles was observed with the method.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
1998年第2期167-170,共4页
Tribology
基金
辽宁省自然科学基金
国家自然科学基金
关键词
扫描电镜
磨损形貌
定向间断观察法
磨损
铸铁
scanning electron microscope wear morphology discontinuous positioning and observing method Classifying number
