Q460NC钢板在线淬火过程翘曲机理研究

王 锟1, 邓 明立1, 刘 梓枫1, 郭 福建2
1、宝钢湛江钢铁厚板厂
2、阳江合金材料实验室

摘要


本文以Q460NC钢板为对象,分析套用B-HARD360B钢冷却工艺时的翘曲机理。研究表明,尽管两者碳当
量接近,但因淬透性与高温屈服强度差异,Q460NC下表面过快冷却优先发生贝氏体相变,体积膨胀产生的相变应
力超过材料屈服强度导致翘曲,上述机理分析为厚板高效稳定生产提供了理论依据和支持。

关键词


Q460NC;淬透性;翘曲;相变应力

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DOI: http://dx.doi.org/10.12361/2661-3654-08-05-163006

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