氮致304不锈钢热轧龟裂的电子光学研究

1.上海宝钢股份公司技术中心,上海,210039

2.上海宝钢股份公司技术中心,上海,210039

Research on Nitrogen-Induced Cracking of 304 Stainless Steel during Hot-Rolling Process by Electron Microscopy Methods

使用扫描电镜和电子探针能谱仪分析了304不锈钢热轧龟裂样品,给出了开裂的显微特征,并认为由于氮含量较高,板坯在热轧时柱状晶晶界析出氮气泡,从而导致板坯沿晶开裂.

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