朱松鹤,戴兵,张梅,卫品官,张恒华

• 1:上海大学材料科学与工程学院

摘要(Abstract)：

利用Gleeble-3500热力模拟实验机对含Nb-Ti低碳微合金钢双道次高温压缩软化行为进行了模拟研究。研究了各种变形参数对该钢软化行为的影响,建立了该钢软化行为的动力学方程。结果表明,随着道次间停留时间的延长、变形温度、变形量以及应变速率的增大,再结晶率随之增大。变形温度对奥氏体晶粒尺寸有着显著的影响,变形温度的降低将使奥氏体晶粒尺寸明显粗化;奥氏体晶粒尺寸随着道次间停留时间的延长而增大,随着变形量以及应变速率的增大而减小。

关键词(KeyWords)： 含Nb-Ti低碳微合金钢;双道次热压缩;软化

Abstract:

Keywords:

基金项目(Foundation): 先进钢铁材料技术国家工程研究中心项目(D.09-0110-07-005)

作者(Author): 朱松鹤,戴兵,张梅,卫品官,张恒华

DOI: 10.13289/j.issn.1009-6264.2010.10.016

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