高韧超高强度DT2200钢的动态力学行为

doi:10.13251/j.issn.0254-6051.2025.07.023

摘要/Abstract

摘要： 对2200 MPa级高韧超高强度DT2200钢的动态力学行为展开研究,利用MTS万能试验机、霍普金森压杆、拉伸试验机测试试验钢的0.001~0.1 s^-1低应变速率准静态性能和950~2950 s^-1高应变速率动态性能,并利用OM、SEM分析试验钢在不同应变速率下的组织演变和断裂机制。结果表明,在准静态压缩应变超过75%时试验钢并未出现开裂现象,表现出很好的延展性,在950~2950 s^-1的高应变速率动态试验中,试验钢表现出强烈的应变速率敏感性,在应变速率为1580 s^-1时动态屈服强度突破了3000 MPa。微观组织表明,试验钢在高应变速率下板条马氏体受应力破碎形成亚晶,且伴随着位错密度的增加。结合准静态、动态力学试验结果,构建了试验钢的动态J-C标准模型和J-C失效模型,可对材料动态行为和失效行为进行预测。

关键词: 高韧超高强度钢, 动态力学行为, 本构模型, 失效模型

Abstract: Dynamic mechanical behavior of 2200 MPa grade high-toughness ultra-high strength steel DT2200 was investigated. The quasi-static properties of the steel at low strain rate of 0.001-0.1 s^-1 and the dynamic properties at high strain rate of 950-2950 s^-1were studied by using MTS universal testing machine, Hopkinson pressure bar and tensile testing machine, and the microstructure evolution and fracture mechanism at different strain rates were analyzed by using OM and SEM. The results show that when the quasi-static compressive strain exceeds 75%, the steel does not crack, showing good ductility. During the dynamic test with high strain rate of 950-2950 s^-1, the steel shows strong strain rate sensitivity, and the dynamic yield strength exceeds 3000 MPa when the strain rate is 1580 s^-1. The microstructure shows that at high strain rate, the lath martensite is broken under stress to form subgrains, which is accompanied by the increase of dislocation density. Based on the results of quasi-static and dynamic mechanical properties, the dynamic J-C standard model and J-C failure model of the steel are constructed, which can be applied to predict the dynamic behavior and failure behavior.

Key words: high-toughness ultra-high strength steel, dynamic mechanical behavior, constitutive model, failure model

中图分类号:

TG142.1

杨成, 耿如明, 厉勇, 韩顺, 王春旭. 高韧超高强度DT2200钢的动态力学行为[J]. 金属热处理, 2025, 50(7): 164-173.

Yang Cheng, Geng Ruming, Li Yong, Han Shun, Wang Chunxu. Dynamic mechanical behavior of high-toughness ultra-high strength DT2200 steel[J]. Heat Treatment of Metals, 2025, 50(7): 164-173.

参考文献

[1] 汪杨鑫, 胡春东, 董瀚. 侵彻战斗部壳体用超高强度钢的研发评述[J]. 钢铁研究学报, 2024, 36(9): 1099-1109.
Wang Yangxin, Hu Chundong, Dong Han. A review on research and development of ultrahigh strength steels for penetrating warhead shells[J]. Journal of Iron and Steel Research, 2024, 36(9): 1099-1109.
[2] 王波, 裴红波, 李绪海, 等. G54钢的动高压性能实验研究[J]. 高压物理学报, 2024, 38(6): 29-36.
Wang Bo, Pei Hongbo, Li Xuhai, et al. Experimental study on dynamic high pressure properties of G54 steel[J]. Chinese Journal of High Pressure Physics, 2024, 38(6): 29-36.
[3] 初建鹏, 冯建程, 鞠翔宇, 等. 动载作用下高强度钢的层裂特性研究[J]. 兵器材料科学与工程, 2024, 47(2): 129-135.
Chu Jianpeng, Feng Jiancheng, Ju Xiangyu, et al. Study on spalling characteristics of high strength steel under dynamic load[J]. Ordnance Material Science and Engineering, 2024, 47(2): 129-135.
[4] 李硕, 王志军, 孙璐璐, 等. 35CrMnSi钢弹体对钢板侵彻失效行为的试验研究[J]. 兵器材料科学与工程, 2015, 38(1): 18-21.
Li Shuo, Wang Zhijun, Sun Lulu, et al. Failure behavior of 35CrMnSi fragment penetrating steel plate[J]. Ordnance Material Science and Engineering, 2015, 38(1): 18-21.
[5] 田杰, 胡时胜. G50钢动态力学性能的实验研究[J]. 工程力学, 2006, 23(6): 107-109, 101.
Tian Jie, Hu Shisheng. Research of dynamic mechanical behaviors of G50 steel[J]. Engineering Mechanics, 2006, 23(6): 107-109, 101.
[6] 孔庆强, 沈飞, 邢逸凡, 等. G50钢与G31钢动态力学性能的对比试验研究[J]. 高压物理学报, 2021, 35(1): 70-76.
Kong Qingqiang, Shen Fei, Xing Yifan, et al. Comparative experimental study on dynamic mechanical properties of G50 steel and G31 steel[J]. Chinese Journal of High Pressure Physics, 2021, 35(1): 70-76.
[7] 秦玉荣, 苏杰, 杨卓越, 等. 三种超高强度钢的动态力学性能[J]. 金属热处理, 2014, 39(12): 83-86.
Qin Yurong, Su Jie, Yang Zhuoyue, et al. Dynamic mechanical properties of three kinds of ultrahigh strength steel[J]. Heat Treatment of Metals, 2014, 39(12): 83-86.
[8] 许浩翔, 姚文进, 李文彬. 超高强度钢G31的动态力学性能及断裂阈值[J]. 弹道学报, 2020, 32(1): 71-76.
Xu Haoxiang, Yao Wenjin, Li Wenbin. Dynamic mechanical properties and fracture threshold of ultra-high strength steel G31[J]. Journal of Ballistics, 2020, 32(1): 71-76.
[9] 韩亚威, 杨璐, 彭磊, 等. 高温高应变速率下LY315钢材动态力学性能研究[J]. 建筑结构学报, 2023, 44(1): 319-326.
Han Yawei, Yang Lu, Peng Lei, et al. Study on dynamic mechanical behavior of LY315 steel at elevated temperature and high strain rate[J]. Journal of Building Structures, 2023, 44(1): 319-326.
[10] 于梦晓, 李佳, 李卓, 等. 热处理对激光增材制造AerMet100超高强度钢动态力学性能的影响[J]. 中国激光, 2020, 47(11): 62-70.
Yu Mengxiao, Li Jia, Li Zhuo, et al. Effect of heat treatment on dynamic mechanical properties of AerMet100 ultra high strength steel fabricated by laser additive manufacturing[J]. Chinese Journal of Lasers, 2020, 47(11): 62-70.
[11] Ren J, Xu Y, Zhao X, et al. Dynamic mechanical behaviors and failure thresholds of ultra-high strength low-alloy steel under strain rate 0.001/s to 10⁶/s[J]. Materials Science and Engineering A, 2018, 719: 178-191.
[12] Bouaziz O. Revisited storage and dynamic recovery of dislocation density evolution law: Toward a generalized Kocks-Mecking model of strain-hardening[J]. Advanced Engineering Materials, 2012, 14(9): 759-761.
[13] Han Q, Yi X. A unified mechanistic model for Hall-Petch and inverse Hall-Petch relations of nanocrystalline metals based on intragranular dislocation storage[J]. Journal of the Mechanics and Physics of Solids, 2021, 154(9): 104530.
[14] Li X Y, Zhang Z H, Cheng X W, et al. The evolution of adiabatic shear band in high Co-Ni steel during high strain-rate compression[J]. Materials Science and Engineering A, 2022, 858: 144173.
[15] 保顺, 丰涵, 宋志刚, 等. 固溶温度对S32750双相不锈钢低周疲劳性能的影响[J]. 钢铁研究学报, 2024, 36(2): 217-225.
Bao Shun, Feng Han, Song Zhigang, et al. Effect of solution temperature on microstructure and low cycle fatigue properties of S32750 duplex stainless steel[J]. Journal of Iron and Steel Research, 2024, 36(2): 217-225.
[16] 姚倡达. 2200 MPa低涡轴用钢析出相及低周疲劳性能研究[D]. 北京: 钢铁研究总院, 2024.
[17] Zheng S, Liu X, Fang L, et al. Strain rate effects of dynamic-driven high dislocation densities in the ultra-high strength Ferrium S53 steel[J]. Materials Today Communications, 2025, 42: 111485.
[18] Dannemann K A, Chalivendra V B, Song B. Dynamic behavior of materials[J]. Experimental Mechanics, 2012, 52(2): 117-118.
[19] 林莉, 支旭东, 范锋, 等. Q235B钢Johnson-Cook模型参数的确定[J]. 振动与冲击, 2014, 33(9): 153-158.
Lin Li, Zhi Xudong, Fan Feng, et al. Determination of parameters of Johnson-Cook models of Q235B steel[J]. Journal of Vibration and Shock, 2014, 33(9): 153-158.
[20] Miyambo M E, Von Kallon D V, Pandelani T, et al. Review of the development of the split Hopkinson pressure bar[J]. Procedia CIRP, 2023, 119: 800-808.
[21] Zhao Yanhua, Sun Jie, Li Jianfeng, et al. A comparative study on Johnson-Cook and modified Johnson-Cook constitutive material model to predict the dynamic behavior laser additive manufacturing FeCr alloy[J]. Journal of Alloys and Compounds, 2017, 723: 179-187.
[22] Lu T, Li Y, Zhao H, et al. Dynamic constitutive behavior investigation of a novel low alloy ultra-high strength steel[J]. Materials Research Express, 2021, 8(1): 016508.
[23] 张迎晖, 赵鸿金, 康永林. 相变诱导塑性TRIP钢的研究进展[J]. 热加工工艺, 2006, 35(3): 60-65.
Zhang Yinghui, Zhao Hongjin, Kang Yonglin. Development of research on TRIP steel[J]. Hot Working Technology, 2006, 35(3): 60-65.[24] 陈跃良, 张柱柱, 卞贵学, 等. 高应变速率条件下38CrMoAl钢的动态力学行为及失效模型[J]. 航空学报, 2020, 41(10): 409-419.
Chen Yueliang, Zhang Zhuzhu, Bian Guixue, et al. Dynamic mechanical behavior and failure model of 38CrMoAl steel under high strain rate[J]. Acta Aeronaution et Astronautica Sinica, 2020, 41(10): 409-419.
[25] 马利, 郑津洋, 胡洋, 等. AISI4340钢的绝热剪切与动态失效准则[J]. 兵工学报, 2010, 31(S1): 79-83.
Ma Li, Zheng Jinyang, Hu Yang, et al. Adiabatic shear and dynamic failure criterion for AISI4340 steel[J]. Acta Armamentarii, 2010, 31(S1): 79-83.
[26] Bridgman, Percy Williams. Studies in Large Plastic Flow and Fracture: With Special Emphasis on the Effects of Hydrostatic Pressure [M]. Harvard University Press, 1964.
[27] Teng X, Wierzbicki T. Evaluation of six fracture models in high velocity perforation[J]. Engineering Fracture Mechanics, 2006, 73(12): 1653-1678.