4Cr5MoSiV1热作模具钢的热变形行为与热加工图
Hot Deformation Behavior and Hot Processing Maps of 4Cr5MoSiV1 HotWorking Die Steel
摘 要
利用Gleeble-3500型热模拟试验机对4Cr5MoSiV1热作模具钢进行单道次等温压缩试验，研究了其在变形温度750~1 050 ℃，应变速率0.001~0.1 s-1条件下的热变形行为，并观察变形后的显微组织；根据试验得到的真应力-真应变曲线，构建了0.3真应变下的Arrhenius高温本构模型，并在动态材料模型基础上绘制了热加工图，从而得到该钢的合理热加工区间。结果表明：4Cr5MoSiV1钢的变形抗力随变形温度的升高或应变速率的降低而显著降低；4Cr5MoSiV1钢的热变形激活能为594.52 kJ·mol-1；在试验参数范围内，4Cr5MoSiV1钢合理的热加工区间为变形温度1 050 ℃、应变速率0.001~0.01 s-1，此时组织中的碳化物细小且弥散分布，第二相强化效果显著。
热变形行为
本构模型
热加工图
4Cr5MoSiV1 hot working die steel
hot deformation behavior
constitutive model
hot processing map
Abstract
Single-pass isothermal compression tests were carried out on 4Cr5MoSiV1 hot working die steel by Gleeble-3500 thermal simulator. The hot deformation behavior of the steel at deformation temperatures of 750-1 050 ℃ and strain rates of 0.001-0.1 s-1 was studied, and the microstructures after deformation were observed. On the basis of true stress-true strain curves obtained from the tests, the Arrhenius high-temperature constitutive model at true strain of 0.3 was established. The hot processing maps were drawn by the dynamic material model to obtain the reasonable hot processing window of the steel. The results show that the deformation resistance of 4Cr5MoSiV1 steel decreased significantly with increasing deformation temperature or decreasing strain rate. The hot deformation activation energy of 4Cr5MoSiV1 steel was 594.52 kJ·mol-1. Within the range of test parameters, the reasonable hot processing window of 4Cr5MoSiV1 steel was at a deformation temperature of 1 050 ℃ and strain rates of 0.001-0.01 s-1; at this time the carbide was fine and dispersed, and the strengthening effect of the second phase was significant.
中图分类号 TG142.1 DOI 10.11973/jxgccl202102013
所属栏目 物理模拟与数值模拟
基金项目 航空科学基金资助项目（20181125002）；江苏省重点研发计划（产业前瞻与共性关键技术）项目（BE2017127）
收稿日期 2020/1/16
修改稿日期 2020/11/6
网络出版日期
作者单位点击查看
备注邱宇(1988-),男,江苏徐州人,高级工程师,博士
引用该论文: QIU Yu,YUAN Fei,ZENG Yuansong,MENG Qiang,LUO Rui,DONG Jihong,ZHAO Huaxia. Hot Deformation Behavior and Hot Processing Maps of 4Cr5MoSiV1 HotWorking Die Steel[J]. Materials for mechancial engineering, 2021, 45(2): 71～77
邱宇,袁飞,曾元松,孟强,罗锐,董继红,赵华夏. 4Cr5MoSiV1热作模具钢的热变形行为与热加工图[J]. 机械工程材料, 2021, 45(2): 71～77
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参考文献
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【6】闵永安. 热作模具钢(H13型)表面处理及其热疲劳、热熔损性能研究[D]. 上海:上海大学, 2005. MIN Y A. Study on the surface treatment process of H13 type hot work steel and its subsequent thermal fatigue and erosion behaviors[D]. Shanghai:Shanghai University, 2005.
【7】王荣, 闵永安, 吴晓春. H13钢经不同表面处理后的静态抗铝热熔损性能比较[J].金属热处理,2003,28(12):5-8. WANG R, MIN Y A, WU X C. Comparison of static anti-melting-loss ability of H13 steel with different surface treatment[J]. Heat Treatment of Metals,2003,28(12):5-8.
【8】揭晓华, 董小虹, 黄拿灿. H13钢碳、氮、氧、硫、硼五元共渗层的性能研究[J]. 金属热处理, 2002, 27(7):21-23. JIE X H, DONG X H, HUANG N C. The properties of H13 steel treated by C-N-O-S-B multi-elements penetrating[J]. Heat Treatment of Metals, 2002, 27(7):21-23.
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【10】田玉新. 热处理工艺对H13钢热疲劳性能的影响[J]. 热处理, 2018, 33(6):37-43. TIAN Y X. Effect of heat treatment processes on thermal fatigue behavior of H13 steel[J]. Heat Treatment, 2018, 33(6):37-43.
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【12】权国政, 刘克威, 王凤彪, 等. 7075铝合金热压缩动态软化行为的本构模型[J]. 机械工程材料, 2010, 34(10):82-86. QUAN G Z, LIU K W, WANG F B, et al. Constitutive model of dynamic softening behavior of 7075 aluminum alloy during hot compression[J]. Materials For Mechanical Engineering, 2010, 34(10):82-86.
【13】罗锐, 程晓农, 徐桂芳, 等. 新型Fe-20Cr-30Ni-0.6Nb-2Al-Mo合金的热变形行为及本构模型[J]. 稀有金属, 2017, 41(2):132-139. LUO R, CHENG X N, XU G F, et al. Constitutive modeling for elevated temperature flow behavior of Fe-20Cr-30Ni-0.6Nb-2Al-Mo alloy[J]. Chinese Journal of Rare Metals, 2017, 41(2):132-139.
【14】彭鸿博, 张宏建. 金属材料本构模型的研究进展[J]. 机械工程材料, 2012, 36(3):5-10. PENG H B, ZHANG H J. Research development of the constitutive models of metal materials[J]. Materials for Mechanical Engineering, 2012, 36(3):5-10.
【15】李红英, 巫荣海, 魏冬冬, 等. T23钢的热变形行为[J]. 材料热处理学报, 2013, 34(1):96-101. LI H Y, WU R H, WEI D D, et al. Thermal deformation behavior of T23 steel[J]. Transactions of Materials and Heat Treatment, 2013, 34(1):96-101.
【16】班宜杰, 张毅, 田保红, 等. Cu-0.8Cr-0.3Zr-0.2Mg合金热变形行为及热加工图[J]. 材料热处理学报, 2019, 40(9):44-49. BAN Y J, ZHANG Y, TIAN B H, et al. Hot deformation behavior and hot processing map of Cu-0.8Cr-0.3Zr-0.2Mg alloy[J]. Transactions of Materials and Heat Treatment, 2019, 40(9):44-49.
【17】于雪梅. NiTi形状记忆合金热变形行为及变形机理的研究[D]. 辽阳:沈阳工业大学, 2019. YU X M. Study on hot deformation behavior and deformation mechanism of NiTi shape memory alloys[D].Liaoyang:Shenyang University of Technology, 2019.
【18】周敬恩. 模具材料选用, 热处理与使用寿命[J]. 金属热处理, 1999, 24(5):1-9. ZHOU J E. Selection and heat treatment of die materials and service life of dies[J]. Heat Treatment of Metals, 1999, 24(5):1-9.
【19】PRASAD Y V R K, GEGEL H L, DORAIVELU S M, et al. Modeling of dynamic material behavior in hot deformation:Forging of Ti-6242[J]. Metallurgical Transactions A, 1984, 15(10):1883-1892.
【20】韩亚辉, 李长生, 任津毅, 等. 正火温度对H13热作模具钢组织性能的影响[J]. 机械工程材料, 2020, 44(增刊2):42-45. HAN Y H, LI C S, REN J Y, et al. Effect of normalizing temperature on microstructure and performance of H13 hot-working die steel[J]. Materials for Mechanical Engineering, 2020, 44(S2):42-45.
【21】罗锐, 程晓农, 郑琦, 等.新型含铝奥氏体耐热合金Fe-20Cr-30Ni-0.6Nb-2Al-Mo的动态再结晶行为[J]. 材料导报, 2017, 31(18):136-140. LUO R, CHENG X N, ZHENG Q, et al. Dynamic recrystallization behavior of an alumina-forming austenitic alloy Fe-20Cr-30Ni-0.6Nb-2Al-Mo[J].Materials Review, 2017, 31(18):136-140.
【22】罗锐. 新型奥氏体耐热合金的设计、制备及其热变形行为与机理研究[D]. 镇江:江苏大学, 2016. LUO R. The design and fabrication of a new austenitic heat-resisting alloy, and its workability and deformation mechanism[D]. Zhenjiang:Jiangsu University, 2016.
【23】李腾, 吴晓东, 唐彬袁, 等. HG700汽车大梁钢的热变形行为及流变应力本构模型的建立[J]. 机械工程材料, 2019, 43(12):67-70. LI T, WU X D, TANG B Y, et al. Hot deformation behavior and establishment of flow stress constitutive model of HG700 automobile beam steel[J]. Materials for Mechanical Engineering, 2019, 43(12):67-70.
【24】程晓农, 朱晶晶, 罗锐, 等. 新型CHDG-A06奥氏体不锈钢的热变形行为[J]. 机械工程材料, 2017, 41(3):98-102. CHENG X N, ZHU J J, LUO R, et al. Hot deformation behavior of new-typed CHDG-A06 austenitic stainless steel[J]. Materials for Mechanical Engineering, 2017, 41(3):98-102.
【25】苑书林. 位错滑移攀移耦合的晶体塑性本构模型及其对高温下弯曲行为尺寸效应的模拟研究[C]//2018年全国固体力学学术会议摘要集(下). 北京:中国力学学会, 2018:172. YUAN S L. Crystal plasticity constitutive model of dislocation slip climbing coupling and its simulation study on the size effect of bending behavior at high temperature[C]//Abstract Set of 2018 National Academic Conference on Solid Mechanics (Part Ⅱ). Beijing:Chinese Society of Mechanics, 2018:172.
【26】孙飞, 张建新. Ru对镍基单晶高温合金微观组织的影响[J]. 材料热处理学报, 2011, 32(10):1-8. SUN F, ZHANG J X. Influence of Ru on microstructure of Ni-base single crystal superalloys[J]. Transactions of Materials and Heat Treatment, 2011, 32(10):1-8.
【27】SELLARS C M, MCTEGART W J.On the mechanism of hot deformation[J]. Acta Metallurgica, 1966, 14(9):1136-1138.
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