王志蒙,王玉辉,曹文全,赵铮铮,王天生,彭艳

• 1:燕山大学国家冷轧板带装备及工艺工程技术研究中心
• 2:钢铁研究总院特殊钢研究所
• 3:邢台钢铁有限责任公司技术中心
• 4:燕山大学亚稳材料制备与科学国家重点实验室

摘要(Abstract)：

利用Gleeble-3800热模拟试验机,研究了GCr15轴承钢在变形温度800~1200℃、应变速率0.01~10 s-1、真应变0.7条件下的热变形行为,建立了其基于峰值应力的本构方程,分析了不同应变量的热加工图,并建立了再结晶区域图。结果表明:变形温度越高,应变速率越小,流变应力越低,材料越容易发生动态再结晶;确定了其在真应变0.6及0.7时的安全区与失稳区,并得到了试验钢发生部分动态再结晶的热变形工艺参数。

关键词(KeyWords)： GCr15轴承钢;本构方程;热加工图;再结晶区域图

Abstract:

Keywords:

基金项目(Foundation): 河北省高校百名优秀创新人才支持项目;; 重型机械协同创新项目(JX2014-09)

作者(Author): 王志蒙,王玉辉,曹文全,赵铮铮,王天生,彭艳

DOI: 10.13289/j.issn.1009-6264.2017.01.031

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