邓为豪,王杰,蒲欢,贾雪梅,杨眉

• 1:西南石油大学新能源与材料学院
• 2:长沙理工大学材料科学与工程学院
• 3:中国石油西南油气田公司工程技术研究院

摘要(Abstract)：

通过Formastor-F‖相变仪测试了9310钢在不同冷却速度下的膨胀曲线，并绘制其连续冷却转变曲线(CCT曲线);以CCT曲线为基础，结合光学显微镜、扫描电镜(SEM)及维氏硬度计等分析了不同冷却速度对实验钢组织转变的影响。结果表明：当冷却速度为0.05～1℃/s时，随着冷却速度的提高，铁素体转变逐渐过渡为贝氏体转变；当冷却速度为5℃/s时，只发生贝氏体转变；当冷却速度为10～20℃/s时，贝氏体转变逐渐向马氏体转变过渡。当冷却速度从0.05℃/s增加到5℃/s时，9310实验钢的维氏硬度迅速增加；当冷却速度提高至10℃/s及以上，维氏硬度稳定在约410 HV0.5。

关键词(KeyWords)： 9310钢;连续冷却;CCT曲线;显微组织;维氏硬度

Abstract:

Keywords:

基金项目(Foundation): 四川省自然科学基金(2022NSFSC0325)

作者(Author): 邓为豪,王杰,蒲欢,贾雪梅,杨眉

DOI: 10.13289/j.issn.1009-6264.2022-0636

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