余万华,陈龙,徐绿婷

• 1:北京科技大学材料科学与工程学院

摘要(Abstract)：

采用热膨胀仪对X65管线钢进行了连续冷却转变曲线(CCT曲线)的研究。用光学显微镜观察在不同冷速下的显微组织,得到了实验钢种的连续冷却组织转变规律。在冷却速度为0.9～9℃/s范围内观察到较明显粒状贝氏体组织。采用回归方法,建立了相变温度-冷速关系模型和冷速为0.03℃/s时的相变动力学模型,结果显示预测值与实验值有较好的吻合。

关键词(KeyWords)： X65;连续冷却转变;组织;回归模型

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 余万华,陈龙,徐绿婷

DOI: 10.13289/j.issn.1009-6264.2012.06.031

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