in the present paper, both the process and new grain boundary of austenite recrystallized of 300m ultra high strength steel have been oserved in-situ by means of high-temperature metalloscope and tem.
运用高温金相和tem方法,对超高强度钢300m的奥氏体相变再结晶过程和新晶界进行了定位观察。
a series of examinations and analysis have been made on the ruptured samples of the swrh72a wire rod by way of optical metalloscope and scanning electron microscope(sem).
用光学金相显微镜和扫描电子显微镜对swrh72a盘条拉拔断裂试样进行一系列检验分析。
the shape, distribution and density of etch pits on the (101) face was observed by metalloscope after chemical etching.
单晶,通过化学腐蚀和金相显微镜研究了(101)晶面蚀坑的形貌、分布特征及其密度的大小。
based on metalloscope observation, the void damage variable and the microhardness damage variable are defined, with the relationship between these two variables established.