采用金相显微镜及扫描电镜观察2205双相不锈钢热轧板边裂缺陷,通过夹杂物和微观组织分析,研究了边裂缺陷的形成原因.结果表明,2205双相不锈钢热轧边裂缺陷是由于边部奥氏体晶粒粗大、铁素体和奥氏体两相比例不协调引起的.根据上述原因提出了相应的改进建议.
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