锻压技术

34CrNi3MoV钢的热变形行为

英文标题：Thermal deformation behavior on 34CrNi3MoV steel

单位：1. 河北工程大学河北省高品质冷镦钢技术创新中心 2. 河南中原特钢装备制造有限公司 3. 辽宁科技大学材料与冶金学院 4. 河北普阳钢铁有限公司河北省高韧性风塔钢工程研究中心 5. 河北普阳钢铁有限公司河北省高塑韧性耐磨钢板技术创新中心

关键词：34CrNi3MoV钢等温压缩流变应力本构方程应变补偿

分类号：TG142.1

出版年,卷(期):页码：2023,48(3):211-218

摘要：

为分析34CrNi3MoV钢的热变形行为，采用Gleeble-1500热模拟试验机进行等温热压缩试验，设置变形温度为800~1200 ℃、应变速率为0.01~10 s-1，获得相应的流变应力曲线。分析了流变应力对变形参数的敏感性，计算了不同应变量下材料参数α、n、Q和A的值，并利用五阶多项式拟合了各材料参数与应变量的对应关系。采用应变补偿的Arrhenius模型对34CrNi3MoV钢的高温流动应力本构方程进行回归。结果表明：34CrNi3MoV钢在变形温度为1000 ~ 1200 ℃、应变速率为0.01 ~ 1 s-1 时出现较为明显的动态再结晶曲线特征，并随着应变速率的降低和变形温度的升高，峰值应力越明显。本构方程预测的流动应力与试验结果的吻合度较好，在整个试验范围内的平均相对误差Rav仅为5.52%，表明所构建的模型是可靠的。

In order to analyze the thermal deformation behavior of 34CrNi3MoV steel, the isothermal thermal compression tests were conducted on Gleeble-1500 thermo-mechanical simulator with the deformation temperature of 800-1200 ℃ and the strain rate of 0.01-10 s-1, the corresponding rheological stress curves were obtained. Then, the sensitivity of rheological stress to deformation parameters was analyzed, and the values of material parameters α, n, Q and A under different strain amounts were calculated. Furthermore, the corresponding relationship between each material parameter and strain amount was fitted by the fifth-order polynomial, and the high-temperature rheological stress constitutive equation of 34CrNi3MoV steel was regressed by the strain-compensated Arrhenius model. The results show that the dynamic recrystallization curve characteristics of 34CrNi3MoV steel is obvious when the temperature is 1000-1200 ℃ and the strain rate is 0.01-1 s-1, and the peak stress becomes more obvious with the decreasing of strain rate and the increasing of deformation temperature. The rheological stress predicted by the constitutive equation has a high agreement with the test results, and the average relative error Rav in the entire test range is only 5.52%, which indicates that the constructed model is reliable.

基金项目：

国家自然科学基金联合基金资助项目 (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)

作者简介：邹志鹏 (1987-)，男，硕士研究生 E-mail： zzp9963@163.com 通信作者：徐东 (1984-)，男，博士，教授，博士生导师 E-mail：xudong_xyz@163.com34CrNi3MoV

参考文献：

[1]禹兴胜, 武川, 石如星, 等. 55NiCrMoV7模具钢锻造过程微观组织演化实验与模拟仿真[J]. 塑性工程学报, 2021, 28(6): 174-184.

Yu X S, Wu C, Shi R X, et al. Microstructure evolution of 55NiCrMoV7 die steel during forging processing:Experiment and simulation[J]. Journal of Plasticity Engineering, 2021, 28(6): 174-184.

[2]Gan C L, Zhang K H, Qi W J, et al. Constitutive equations for high temperature flow stress prediction of 6063 Al alloy considering compensation of strain[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(11): 3486-3491.

[3]陈益哲, 庞玉华, 王建国, 等. GH2907合金热变形本构方程[J]. 稀有金属材料与工程, 2019, 48(11): 3577-3584.

Chen Y Z, Pang Y H, Wang J G, et al. Constitutive equation for hot deformation of GH2907 superalloy[J]. Rare Metal Materials and Engineering, 2019, 48(11): 3577-3584.

[4]张兵, 岳磊, 陈韩锋, 等. 铸态GH4169合金热变形行为及三种本构模型对比[J]. 稀有金属材料与工程, 2021, 50(1): 212-222.

Zhang B, Yue L, Chen H F, et al. Hot deformation behavior of as-cast GH4169 alloy and comparison of three constitutive models[J]. Rare Metal Materials and Engineering, 2021, 50(1): 212-222.

[5]王巧玲, 唐炳涛, 郑伟. 一种修正的Norton-Hoff本构模型及实验验证[J]. 中国机械工程, 2015, 26(14): 1978-1982.

Wang Q L, Tang B T, Zheng W. A modified Norton-Hoff constitutive model and experimental verification[J]. China Mechanical Engineering, 2015, 26(14): 1978-1982.

[6]李全, 金朝阳. 采用改进和优化的Zerilli-Armstrong本构模型预测AZ80镁合金的高温流动应力[J]. 中国有色金属学报, 2021, 31(8): 2091-2100.

Li Q, Jin C Y. Prediction of high temperature flow stress of AZ80 magnesium alloy by using modified and optimized Zerilli-Armstrong constitutive models[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(8): 2091-2100.

[7]彭付申, 陈鑫, 袁战伟, 等. W-20Cu复合材料热变形行为及应变补偿本构模型[J]. 兵器材料科学与工程, 2021, 44(6): 41-46.

Peng F S, Chen X, Yuan Z W, et al. Thermal deformation behavior and strain compensation constitutive model of W-20Cu composites[J]. Ordnance Material Science and Engineering, 2021, 44(6): 41-46.

[8]刘庆琦, 卢晔, 张翼飞, 等. Al19.3Co15Cr15Ni50.7高熵合金的热变形行为[J]. 金属学报, 2021, 57(10): 1299-1308.

Liu Q Q, Lu Y, Zhang Y F, et al. Thermal deformation behavior of Al19.3Co15Cr15Ni50.7 high entropy alloy [J]. Acta Metallurgica Sinica, 2021, 57 (10): 1299-1308.

[9]李红英, 赵菲, 刘丹, 等. 工程机械用Q1100钢的热变形应变补偿本构方程[J]. 中南大学学报: 自然科学版, 2020, 51(3): 608-618.

Li H Y, Zhao F, Liu D, et al. Thermal deformation strain compensation constitutive equation for Q1100 steel for construction machinery [J]. Journal of Central South University:Science and Technology, 2020, 51(3): 608-618.

[10]梅金娜, 薛飞, 吴天栋, 等. FeCrNiMn高熵合金本构方程的建立[J]. 材料导报, 2021, 35(S1): 336-341.

Mei J N, Xue F, Wu T D, et al. Establishment of constitutive equation of FeCrNiMn high entropy alloy [J]. Materials Reports, 2021, 35(S1): 336-341.

[11]王雅静, 刘宗昌, 段宝玉. 34CrNi3MoV钢组织细化工艺的研究[J]. 兵器材料科学与工程, 2013, 36(1): 128-132.

Wang Y J, Liu Z C, Duan B Y. Microstructure of refined 34CrNi3MoV steel[J]. Ordnance Material Science and Engineering, 2013, 36(1): 128-132.

[12]赵勇桃, 刘宗昌, 王玉峰. 34CrNi3MoV钢的混晶及消除措施[J]. 金属热处理, 2007, 32(5): 75-77.

Zhao Y T, Liu Z C, Wang Y F. Mixed grain and elimination measure of 34CrNi3MoV steel [J]. Heat Treatment of Metals, 2007, 32(5): 75-77.

[13]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 X, Qi Y G, Shi X N, et al. Behaviors and model of dynamic recrystallization of nickel-based superalloy IN718Plus [J]. Chinese Journal of Rare Metals, 2019, 43(12): 1260-1268.

[14]Sellars C M, Mctegart W J. On the mechanism of hot deformation [J]. Acta Metallurgica, 1996, 14(9): 11-36.

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