论文部分内容阅读
采用扫描电镜能谱仪、金相检验及跟踪试验等方法对20MnSi螺纹钢筋脆断的成因进行了综合分析,认为20MnSi螺纹钢筋脆断的主要原因一是钢材成分严重不均匀,二是表面增碳,造成组织极不均匀甚至异常。并讨论了主要的影响因素。
The causes of brittle fracture of 20MnSi rebar were analyzed by scanning electron microscopy, metallographic examination and tracking test. The main causes of brittle fracture of 20MnSi rebar were that the composition of steel was seriously non-uniform, and the surface carbon , Resulting in very uneven or even abnormal organization. And discussed the main factors.