34CrNi3MoV合金钢的动态再结晶行为

doi:10.13251/j.issn.0254-6051.2023.05.006

金属热处理 ›› 2023, Vol. 48 ›› Issue (5): 32-40.DOI: 10.13251/j.issn.0254-6051.2023.05.006

34CrNi3MoV合金钢的动态再结晶行为

邹志鹏¹, 徐东^1,2, 任毅诚³, 王怡群², 郑磊^4,5, 庞洪轩^4,5

1.河北工程大学河北省高品质冷镦钢技术创新中心, 河北邯郸 056038;
2.河南中原特钢装备制造有限公司技术中心, 河南济源 459008;
3.东北大学材料科学与工程学院, 辽宁沈阳 110819;
4.河北普阳钢铁集团中普(邯郸)有限责任公司河北省高韧性风塔钢工程研究中心, 河北邯郸 056305;
5.河北普阳钢铁集团河北省高塑韧性耐磨钢板技术创新中心, 河北邯郸 056305

收稿日期:2022-10-14 修回日期:2023-03-14 出版日期:2023-05-25 发布日期:2023-06-21
通讯作者: 徐东,教授,博士,E-mail: xudong_xyz@163.com
作者简介:邹志鹏(1987—),男,硕士研究生,主要研究方向为特种钢材料,E-mail: zzp9963@163.com。
基金资助:
国家自然科学基金联合基金(NSFC)(U20A20272);河北省军民科技协同创新专项(22351001D);邯郸市科学研究计划重点项目(21122015004);河北省高等学校科学技术研究项目(CXY2023004)

Dynamic recrystallization behavior of 34CrNi3MoV alloy steel

Zou Zhipeng¹, Xu Dong^1,2, Ren Yicheng³, Wang Yiqun², Zheng Lei^4,5, Pang Hongxuan^4,5

1. Technology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Hebei University of Engineering, Handan Hebei 056038, China;
2. Technology Center, Henan Zhongyuan Special Steel Equipment Manufacturing Co., Ltd., Jiyuan Henan 459008, China;
3. School of Materials Science and Engineering, Northeastern University, Shenyang Liaoning 110819, China;
4. Engineering Research Center for High Toughness Wind Tower Steel of Hebei Province, Zhongpu (Handan) Iron and Steel Co., Ltd., Hebei Puyang Iron & Steel Group, Handan Hebei 056305, China;
5. Technology Innovation Center for Wear Resistant Steel Plate of High Plasticity and High Toughness of Hebei Province, Hebei Puyang Iron & Steel Group, Handan Hebei 056305, China

Received:2022-10-14 Revised:2023-03-14 Online:2023-05-25 Published:2023-06-21

摘要/Abstract

摘要： 采用Gleeble-1500热模拟试验机对34CrNi3MoV钢在最大变形量为50%的条件下,进行变形温度为800~1200 ℃、应变速率为0.01~10 s^-1的单道次等温压缩试验并得到了真应力-真应变曲线。结果表明,34CrNi3MoV钢在800 ℃和900 ℃(1、10 s^-1)条件下仅发生动态回复,在1000~1200 ℃和900 ℃(0.01、0.1 s^-1)条件下发生动态再结晶。采用Arrhenius方程计算不同应变量时的激活能Q,并利用五次多项式拟合激活能Q与应变量ε的对应关系:Q=331.78+1401.47ε-10 233.34ε²+33 725.26ε³-52 745.07ε⁴+31 981.48ε⁵。利用加工硬化率构建了临界特征值ε_c和ε_p与Z参数的关系模型,在此基础上构建了预测动态再结晶体积分数的动力学模型X_DRX=1-exp[-0.564((ε-ε_c)/ε_p)^1.945]。

关键词: Cr-Ni-Mo钢, 动态再结晶, 激活能, 临界特征值, 体积分数

Abstract: Single-pass isothermal compression test with maximum deformation of 50% was conducted by using Gleeble-1500 thermo-mechanical simulator, and the true stress-strain curves for 34CrNi3MoV steel were obtained at deformation temperature of 800-1200 ℃ and strain rate of 0.01-10 s^-1. The results show that, at 800 ℃ and 900 ℃ (1, 10 s^-1), the 34CrNi3MoV steel undergoes dynamic recovery only, while at 1000-1200 ℃ and 900 ℃(0.01, 0.1 s^-1) undergoes dynamic recrystallization. By using Arrhenius equation to calculate the activation energy Q under different strains, the corresponding relationship between activation energy Q and strain is obtained by using the quintic polynomial Q=331.78+1401.47ε-10 233.34ε²+33 725.26ε³-52 745.07ε⁴+31 981.48ε⁵. The relationships between critical eigenvalues (ε_c, ε_p) and Z parameter are constructed by using work-hardening rate, and based on which a kinetic model for the 34CrNi3MoV steel to predict dynamic recrystallization volume fraction is established: X_DRX=1-exp[-0.564((ε-ε_c)/ε_p)^1.945].

Key words: Cr-Ni-Mo steel, dynamic recrystallization, activation energy, critical eigenvalue, volume fraction

中图分类号:

TG142.7

邹志鹏, 徐东, 任毅诚, 王怡群, 郑磊, 庞洪轩. 34CrNi3MoV合金钢的动态再结晶行为[J]. 金属热处理, 2023, 48(5): 32-40.

Zou Zhipeng, Xu Dong, Ren Yicheng, Wang Yiqun, Zheng Lei, Pang Hongxuan. Dynamic recrystallization behavior of 34CrNi3MoV alloy steel[J]. Heat Treatment of Metals, 2023, 48(5): 32-40.

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34CrNi3MoV合金钢的动态再结晶行为

Dynamic recrystallization behavior of 34CrNi3MoV alloy steel

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