Analysis of the Stem-fillet blend fracture of exhaust valve was conducted by means of macroexamination, microstructure examination, chemical composition analysis and hardness test.
摘要用宏、微观检验、化学析和硬度测试等方法对断头的排气门进行了析。
Analysis of the Stem-fillet blend fracture of exhaust valve was conducted by means of macroexamination, microstructure examination, chemical composition analysis and hardness test.
摘要用宏、微观检验、化学析和硬度测试等方法对断头的排气门进行了析。
Research on the failure reasons of the cooling tube were carried out by means of macroexamination, thickness measurement, X ray diffraction, optical microscopy and chemical analysis.
用宏、微观析、化学析等手段,对冷却水管的腐蚀穿孔进行了失效析。
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