姬雅倩,周旭东,陈学文,张建,高全德,李永亮,马姣

• 1:河南科技大学材料科学与工程学院
• 2:河南中原特钢装备制造有限公司

摘要(Abstract)：

采用双道次热压缩试验对PCrNi3MoV钢的静态再结晶行为进行了研究,分析了不同变形速率、第一道次真应变、变形温度以及初始晶粒尺寸对其静态再结晶体积分数以及晶粒尺寸变化的影响,并且基于试验数据建立了PCrNi3MoV钢的静态再结晶动力学模型和晶粒尺寸模型。结果表明:在相同间隔时间内,随着第一道次真应变、变形速率、变形温度的降低以及初始晶粒尺寸的增大,静态再结晶体积分数减小,其中静态再结晶体积分数受变形速率和变形温度影响相对较大,受第一道次真应变和初始晶粒尺寸的影响相对较小。采用Origin软件对试验数据进行线性拟合计算得出PCrNi3MoV钢的静态再结晶激活能为246411.32 J/mol,通过将PCrNi3MoV钢静态再结晶动力学模型计算获得的预测值与试验值进行对比,得出该模型具有可信度。

关键词(KeyWords)： PCrNi3MoV钢;静态再结晶;动力学模型

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划资助项目(2020YFB2008400)

作者(Author): 姬雅倩,周旭东,陈学文,张建,高全德,李永亮,马姣

DOI: 10.13289/j.issn.1009-6264.2021-0364

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