the change of the polished ceramic tile's surface hasbeen observed using metallographic microscope and sem.
用金相显微镜、扫描电镜观察抛光砖表面孔隙的变化。
optical metallographic microscope and electron-probe testing methods are used to analyze the fine crack, spall and fine cleft of u71mn heavy rail tread.
采用光学金相显微镜和电子探针分析仪等测试方法对u71mn重轨踏面发纹、缺损和小裂口缺陷进行了分析。
the microstructure of the coating is analysed with metallographic microscope and x ray diffractometer.
用金相显微镜和x射线衍射仪分析涂层的显微组织。
the surface cracks on steel sheet db685 was analyzed by metallographic microscope and scanning electron microscope.
用金相显微镜和扫描电镜分析方法,对db685钢板表面裂纹进行分析。
the microstructure and fractography of the samples were respectively observed by metallographic microscope and sem.
利用金相显微镜、扫描电镜对试样的显微组织、断口形貌进行观察;
the influences of multilayer cladding on the microstructure and hardness of laser-clad layers were studied by metallographic microscope and hardometer.
采用金相显微镜和硬度计研究了多层熔覆对激光熔覆层微观组织和硬度的影响。
abstract: through hardness testing, metallographic microscope analysis, and other means, the origination of crack failure of the aluminum alloy die casting die was analyzed.