尹云洋,杨王玥,李龙飞,孙祖庆,王西涛

• 1:北京科技大学材料科学与工程学院
• 2:武汉钢铁(集团)公司研究院
• 3:北京科技大学新金属材料国家重点实验室

摘要(Abstract)：

通过物理模拟系统上的轧制实验,研究了基于动态相变的热轧细晶C-Mn-Si和C-Mn-Al-Si系多相钢的组织及性能特点。结果表明,通过动态相变和相变后冷却的控制,可以得到铁素体晶粒尺寸较为细小,珠光体团径较小,片层间距较薄,以及一定体积分数的贝氏体和残留奥氏体所组成的多相组织。与铁素体粒径相类似的细晶钢相比,由于组织的细晶化,多相化,以及残留奥氏体塑性变形时所产生的TRIP效应,使实验钢具有强度较高、塑性较好,屈强比较低,加工硬化能力较高的特点。

关键词(KeyWords)： 热轧多相钢;细晶;动态相变;TRIP效应;组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划项目(2007AA03Z501);; 高等学校博士学科点专项科研基金项目(200800081014)

作者(Author): 尹云洋,杨王玥,李龙飞,孙祖庆,王西涛

DOI: 10.13289/j.issn.1009-6264.2010.08.011

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