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。
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。
The main methods used to study materials flow including steel ball as tracers, metallographic and insert marker methods.
目前研究塑性材料流动的方法主要有钢球跟踪技术、微观图像法及标签法等。
Study metallographic structure of phosphor eutectic and boride in continuous cast iron. The microstructure of piston has been analyzed and proved after wear test.
研究水平连续铸造方式下高磷含硼铸铁中磷共晶和硼化物的分布特点，并进行超耐磨性试验，对磨损试验后材料的微观形貌进行试验验证分析。
The Mechanical Design and the Study on the Four Shafts of the Metallographic Sample Cutting Machine;
介绍了国内外金相试样抛光机的研究情况，以及各种类型抛光机的性能与特点。
The Mechanical Design and the Study on the Four Shafts of the Metallographic Sample Cutting Machine;
介绍了国内外金相试样抛光机的研究情况，以及各种类型抛光机的性能与特点。
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