Macro examination, metallographic microscope, microhardness tester and X ray diffractometer were utilized to study the failure reasons for connecting rode bearing bush of automobile engine.
采用宏微观检验、显微硬度测定、X射线衍射等方法对汽车发动机连杆轴瓦的失效进行了分析。
2
The advance of metallographic technique and its significance in the study of phase transformation is generally described.
概述金相技术的进展及其对相变研究的重要意义。
3
The main methods used to study materials flow including steel ball as tracers, metallographic and insert marker methods.