Dynamic recrystallization behaviors of 30CrNi3MoV steel and its mathematical models

doi:10.13251/j.issn.0254-6051.2021.07.005

Abstract

Abstract: On the basis of the measured true stress-true strain curves of the 30CrNi3MoV steel by Gleeble-3500 thermal-mechanical simulator, the dynamic recrystallization behaviors and mathematical models were studied for the 30CrNi3MoV steel with strain rates of 0.01 and 0.1 s^-1. It is found that the dynamic recrystallization of the 30CrNi3MoV steel is easy to occur at high temperature and low strain rate, and the hot deformation activation energy is obtained to be 328.2 kJ/mol. According to the critical strain determined by the inflection point of work hardening rate versus flow stress curve (θ-σ), the critical strain equation of dynamic recrystallization is established to beε_c=0.001 22Z^0.175. The predicted values by the constructed dynamic recrystallization volume fraction and average grain size models are in good agreement with the experimental values. At the strain rate of 0.1 s^-1 and the deformation temperature of 1050 ℃, fine uniform grains with the average grain size of about 19.9 μm can be obtained in the 30CrNi3MoV steel.

Key words: 30CrNi3MoV steel, critical strain, dynamic recrystallization, volume fraction, grain size

CLC Number:

TG142.1⁺2

Pan Longbo, Chu Tao, Zhang Shuo, Jiang Ji, Cheng Caijin, Xie Qingzhong, Xing Xueqiang, Si Tingzhi. Dynamic recrystallization behaviors of 30CrNi3MoV steel and its mathematical models[J]. Heat Treatment of Metals, 2021, 46(7): 23-30.

References

[1] 张传滨, 刘洁, 张进学, 等. 核电用304不锈钢动态再结晶数学模型的建立[J]. 铸造设备与工艺, 2011(1): 16-19.
Zhang Chuanbin, Liu Jie, Zhang Jinxue, et al. Mathematical model of dynamic recrystallization for nuclear power 304 austenitic stainless steel[J]. Foundry Equipment and Technology, 2011(1): 16-19.
[2] 王凌浩, 辛选荣, 许丁, 等. 50SiMnVB合金钢动态再结晶临界模型的建立[J]. 热加工工艺, 2020, 49(17): 53-56.
Wang Linghao, Xin Xuanrong, Xu Ding, et al. Establishment of dynamic recrystallization critical model of 50SiMnVB alloy steel[J]. Hot Working Technology, 2020, 49(17): 53-56.
[3] Zhang C, Zhang L, Xu Q, et al. The kinetics and cellular automaton modeling of dynamic recrystallization behavior of a medium carbon Cr-Ni-Mo alloyed steel in hot working process[J]. Materials Science and Engineering: A, 2016, 678(10): 33-43.
[4] 吴俊平, 潘中德, 梁新增, 等. 合金元素Cr、Ni和Mo对钒微合金钢动态再结晶行为的影响[J]. 金属热处理, 2019, 44(8): 64-68.
Wu Junping, Pan Zhongde, Liang Xinzeng, et al. Effect of Cr, Ni and Mo on dynamic recrystallization behavior of vanadium microalloying steel[J]. Heat Treatment of Metals, 2019, 44(8): 64-68.
[5] Poliak E I, Jonas J J. A one-parameter approach to determining the critical conditions for the initiation of dynamic recrystallization[J]. Acta Materialia, 1996, 44(1): 127-136.
[6] 陈学文, 陈天安, 周会军, 等. 45Cr4NiMoV合金动态再结晶临界应变[J]. 材料热处理学报, 2015, 36(1): 109-113.
Chen Xuewen, Chen Tian'an, Zhou Huijun, et al. Critical strain of dynamic recrystallization of 45Cr4NiMoV steel[J]. Transactions of Materials and Heat Treatment, 2015, 36(1): 109-113.
[7] Hu Z, Wang K. Evolution of dynamic recrystallization in 5CrNiMoV steel during hot forming[J]. Advances in Materials Scienceand Engineering, 2020, 2020(12): 1-13.
[8] 蔡薇, 高鹏哲, 陈辉明, 等. Cu-Cr-Zr-Ti合金高温热变形行为及热加工图[J]. 金属热处理, 2019, 44(8): 147-154.
Cai Wei, Gao Pengzhe, Chen Huiming, et al. High temperature deformation behavior and hot processing map of Cu-Cr-Zr-Ti alloy[J]. Heat Treatment of Metals, 2019, 44(8): 147-154.
[9] Jonas J J, Quelennec X, Jiang L, et al. The avrami kinetics of dynamic recrystallization[J]. Acta Materialia, 2009, 57(9): 2748-2756.
[10] 陈曦, 亓耀国, 史晓楠, 等. IN718Plus高温合金的动态再结晶行为及模型研究[J]. 稀有金属, 2019, 43(12): 1260-1268.
Chen Xi, Qi Yaoguo, Shi Xiaonan, et al. Behaviors and model of dynamic recrystallization of nickel-based superalloy IN718Plus[J]. Chinese Journal of Rare Metals, 2019, 43(12): 1260-1268.
[11] 叶玉娟, 高全德. 30CrNi3MoVA钢的晶粒细化及组织均匀化研究[J]. 锻压技术, 2019, 44(5): 169-173.
Ye Yujuan, Gao Quande. Research on grain refinement and organization uniformity of 30CrNi3MoVA steel[J]. Forging and Stamping Technology, 2019, 44(5): 169-173.
[12] 储滔, 沈慧, 斯庭智. 30CrNi3MoV钢的热变形行为及其热加工图[J]. 金属热处理, 2020, 45(10): 24-30.
Chu Tao, Shen Hui, Si Tinzhi. Hot deformation behavior and hotprocessing map of 30CrNi3MoV steel[J]. Heat Treatment of Metals, 2020, 45(10): 24-30.
[13] Zener C, Hollomon J H. Effect of strain rate upon plastic flow of steel[J]. Journal of Applied Physics, 1944, 15(1): 22-32.
[14] Quan G Z, Shi R J, Zhao J, et al. Modeling of dynamic recrystallization volume fraction evolution for AlCu4SiMg alloy and its application in FEM[J]. Transactions of Nonferrous Metals Society of China, 2019, 29(6): 1138-1151.
[15] 杨明. AZ80镁合金动态再结晶行为与超塑性行为研究[D]. 洛阳: 河南科技大学, 2011.
Yang Ming. The study on the dynamic recrystallization behaviors and the superplastic behaviors for AZ80 magnesium alloy[D]. Luoyang: Henan University of Science and Technology, 2011.
[16] 贾红帅, 李权, 李激光, 等. 2.25Cr1Mo钢动态再结晶物理冶金模型的研究[J]. 钢铁研究学报, 2019, 31(1): 56-63.
Jia Hongshuai, Li Quan, Li Jiguang, et al. Physical metallurgical model for dynamic recrystallization of 2.25Cr1Mo steel[J]. Journal of Iron and Steel Research, 2019, 31(1): 56-63.
[17] 肖凯, 陈拂晓. 铸态铅黄铜动态再结晶模型的建立[J]. 塑性工程学报, 2008, 15(3): 132-137.
Xiao Kai, Chen Fuxiao. Modeling the dynamic-recrystallization of casting lead brass[J]. Journal of Plasticity Engineering, 2008, 15(3): 132-137.
[18] 张琦, 李烈军, 陈松军, 等. SAE8620RH齿轮钢的动态再结晶临界条件[J]. 材料热处理学报, 2020, 41(6): 160-167.
Zhang Qi, Li Liejun, Cheng Songjun, et al. Critical conditions of dynamic recrystallization of SAE8620RH gear steel[J]. Transactions of Materials and Heat Treatment, 2020, 41(6): 160-167.
[19] 骆刚. 42CrMo热塑性流变及动态再结晶行为研究[D]. 重庆: 重庆大学, 2010.
Luo Gang. Study on dynamic recrystallization behavior and thermoplastic flow stress of 42CrMo steel[D]. Chongqing: Chongqing University, 2010.
[20] 郑晓华, 柏永青, 贾晓斌. 车轴用LZ50钢的热变形行为及高温塑性本构方程[J]. 金属热处理, 2020, 45(10): 31-34.
Zheng Xiaohua, Bai Yongqing, Jia Xiaobin. Hot deformation behavior and high temperature plastic constitutive equation of LZ50 steel for axle[J]. Heat Treatment of Metals, 2020, 45(10): 31-34.