Abstract

After hot rolling and multipass cold rolling experiment, the hot rolled sheet and the sheets with reduction ratios of 20% and 40% of 301L stainless steel were obtained. The effect of cold rolling reduction ratio on microstructure of 301L stainless steel was investigated by metallographic analysis, XRD analysis and TEM analysis. The research shows that carbides precipitate along the austenite phase interface in the hot rolled specimen. Crystalline grains are refined by cold rolling: their average grain size decreases from 91.9 to 17.3 nm as the reduction ratio increases, which is accompanied by the blocking of dislocations.

中文翻译：

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变形对301L不锈钢组织的影响

摘要

经过热轧和多道次冷轧实验，得到了热轧板和301L不锈钢的压下率分别为20％和40％的板。通过金相分析，XRD分析和TEM分析研究了冷轧压下率对301L不锈钢组织的影响。研究表明，碳化物沿热轧试样中的奥氏体相界面析出。晶粒通过冷轧进行精制：随着压下率的增加，晶粒的平均尺寸从91.9纳米减小到17.3纳米，并伴随着位错的阻塞。