蔡恒君,高喆,宋仁伯,裴宇,于三川

• 1:鞍钢股份有限公司冷轧厂
• 2:北京科技大学材料科学与工程学院
• 3:精密制造技术航空科技重点实验室

摘要(Abstract)：

用DIL805型热膨胀仪研究了低碳低合金高强钢(HSLA)奥氏体连续冷却过程的相变规律,用膨胀法结合金相法建立了实验钢奥氏体的连续冷却转变曲线(CCT),随着冷却速度的增加,实验钢的组织分别发生了铁素体转变、珠光体转变、贝氏体转变和马氏体转变。建立了相变点-冷却速度以及相变量-冷却速度之间的数学方程,并回归计算了拟合度较高的相变模型。结果表明,计算值与试验值之间能很好的吻合,证明了该相变模型的可行性。

关键词(KeyWords)： 低碳低合金高强钢;CCT;冷却速度;相变模型

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 蔡恒君,高喆,宋仁伯,裴宇,于三川

DOI: 10.13289/j.issn.1009-6264.2015.03.039

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