The edge crack on Q345B wide strip steel was analyzed by means of chemical composition analysis, mechanical property testing, micro metallographical examination.
采用化学成分分析、力学性能测试、显微组织观察和夹杂物检验等方法对有边缘裂纹的Q 345 B宽带钢进行分析。
By simulating the features of two -, three -, four-high mill with finite element method, the geometric shape, micro-structure and mechanical property of wire section are analyzed.
分析了用有限元法模拟线材二辊、三辊和四辊轧机轧制的特点，对线材断面的几何形状、微观组织和机械性能进行了介绍。
They have theoretical guide and significance further to investigate the micro-structural evolution law and predict accurately on comprehensive mechanical property of CWR product.
所分析内容为进一步研究材料内部微观组织演变规律，准确预测楔横轧产品综合机械性能具有理论指导意义。
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