The analysis of chemical composition, hardness and microstructure and quality inspection of surface processing have been done to metal bone screw which was fractured in human body.
对断裂的金属接骨螺钉进行了化学成分、硬度、显微组织分析及表面加工质量的检测。
The methods of visual inspection, SEM, X-ray EDS, metallography and chemical composition analysis were adopted to research the rupture of flexible metal hose.
采用宏观检查、扫描电镜、X射线能谱、金相检验、化学成分分析等方法，对金属波纹软管开裂的原因进行分析。
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