The reason of roll fracture has been analyzed by means of chemical composition analysis, macro fractograph, low magnification structure and microstructure examination.
采用化学成分、宏观断口、低倍组织及金相组织等分析方法对轧辊断裂原因进行了分析。
2
The fracture reason of 45 steel bar during cold drawing was analyzed by chemical inspection, metallographic examination, scanning electron fractograph and electron probe analysis.