刘艳芳,冀国良,李雷,王璐瑶

• 1:河南理工大学材料科学与工程学院
• 2:河南省结构功能性金属基复合材料工程技术研究中心
• 3:上海电机学院机械学院

摘要(Abstract)：

利用Gleeble-3500型热模拟试验机对M50NiL钢进行了温度为900～1200℃、应变速率为0.01～50 s~(-1)的热压缩试验,研究了M50NiL钢的热变形行为。结果表明:在本实验条件下M50NiL钢出现了3种组织,即具有变形晶粒和孪晶的微观组织、新形核再结晶晶粒和锯齿状晶粒的微观组织和完全动态再结晶的微观组织。Z参数值越低,动态再结晶组织就越充分,Z参数值越高,越容易形成变形晶粒和孪晶的微观组织。基于位错密度理论和Avrami形核长大动力学建立了M50NiL钢的物理型本构方程,其能够揭示动态回复和再结晶两种物理机制对流动应力的影响规律。预测的流动应力与实验数据具有很好的相关性,表明该本构方程能够准确地描述M50NiL钢在较宽温度和应变速率范围下的动态回复和动态再结晶行为。

关键词(KeyWords)： M50NiL钢;本构模型;动态回复;动态再结晶

Abstract:

Keywords:

基金项目(Foundation): 河南省高等学校重点科研项目(16A430037)

作者(Author): 刘艳芳,冀国良,李雷,王璐瑶

DOI: 10.13289/j.issn.1009-6264.2021-0091

参考文献(References)：

• [1] Lin Y C,Chen X M.A critical review of experimental results and constitutive descriptions for metals and alloys in hot working[J].Materials and Design,2011,32(4):1733-1759.
• [2] Gholamzadeh A,Taheri A K.The prediction of hot flow behavior of Al-6%Mg alloy[J].Mechanics Research Communications,2009,36(2):252-259.
• [3] Liu R,Salahshoor M,Melkote S N,et al.A unified internal state variable material model for inelastic deformation and microstructure evolution in SS304[J].Materials Science and Engineering A,2014,594:352-363.
• [4] Tang X F,Wang B Y,Huo Y M,et al.Unified modeling of flow behavior and microstructure evolution in hot forming of a Ni-based superalloy[J].Materials Science and Engineering A,2016,662:54-64.
• [5] Lin Y C,Li Q F,Xia Y C,et al.A phenomenological constitutive model for high temperature flow stress prediction of Al-Cu-Mg alloy[J].Materials Science and Engineering A,2012,534:654-662.
• [6] Samantaray D,Mandal S,Bhaduri A K,et al.Analysis and mathematical modelling of elevated temperature flow behaviour of austenitic stainless steels[J].Materials Science and Engineering A,2011,528(4/5):1937-1943.
• [7] Li J,Li F G,Cai J,et al.Comparative investigation on the modified Zerilli-Armstrong model and Arrhenius-type model to predict the elevated-temperature flow behaviour of 7050 aluminium alloy[J].Computational Materials Science,2013,71:56-65.
• [8] Lin Y C,Chen M S,Zhong J.Prediction of 42CrMo steel flow stress at high temperature and strain rate[J].Mechanics Research Communications,2008,35(3):142-150.
• [9] Lin Y C,Li K K,Li H B,et al.New constitutive model for high-temperature deformation behavior of inconel 718 superalloy[J].Materials and Design,2015,74:108-118.
• [10] Ji G L,Li Q,Li L.A physical-based constitutive relation to predict flow stress for Cu-0.4Mg alloy during hot working[J].Materials Science and Engineering A,2014,615:247-254.
• [11] 苏煜森，杨银辉，曹建春，等.节Ni型2101双相不锈钢的高温热加工行为研究[J].金属学报，2018,54(4):485-493.SU Yu-sen,YANG Yin-hui,CAO Jian-chun,et al.Research on hot working behavior of low-nickel duplex stainless steel 2101[J].Acta Metallurgica Sinica,2018,54(4):485-493.
• [12] 赵嫚嫚，秦森，冯捷，等.Al、Ni对1Cr9Al(1～3)Ni(1～7)WVNbB钢热变形行为的影响[J].金属学报，2020,56(7):960-968.ZHAO Man-man,QIN Sen,FENG Jie,et al.Effect of Al and Ni on hot deformation behavior of 1Cr9Al(1-3)Ni(1-7)WVNbB steel[J].Acta Metallurgica Sinica,2020,56(7):960-968.
• [13] 魏海莲，刘国权，肖翔，等.表观的和基于物理的35Mn2钢奥氏体热变形本构分析[J].金属学报，2013,49(6):731-738.WEI Hai-lian,LIU Guo-quan,XIAO Xiang,et al.Apparent and physically based constitutive analyses for hot deformation of austenite in 35Mn2 steel[J].Acta Metallurgica Sinica,2013,49(6):731-738.
• [14] Han Y,Qiao G J,Sun J P,et al.A comparative study on constitutive relationship of as-cast 904L austenitic stainless steel during hot deformation based on Arrhenius-type and artificial neural network models[J].Computational Materials Science,2013,67:93-103.
• [15] Mostafaei M A,Kazeminezhad M.Hot deformation behavior of hot extruded Al-6Mg alloy[J].Materials Science and Engineering A,2012,535:216-221.
• [16] Ji G L,Li L,Qin F L,et al.Comparative study of phenomenological constitutive equations for an as-rolled M50NiL steel during hot deformation[J].Journal of Alloys and Compounds,2017,695:2389-2399.
• [17] Lin Y C,Chen X M,Wen D X,et al.A physically-based constitutive model for a typical nickel-based superalloy[J].Computational Materials Science,2014,83:282-289.
• [18] Wang L,Liu F,Zuo Q,et al.Prediction of flow stress for N08028 alloy under hot working conditions[J].Materials and Design,2013,47:737-745.
• [19] 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.
• [20] Laasraoui A,Jonas J J.Prediction of steel flow stresses at high temperatures and strain rates[J].Metallurgical Transactions A,1991,22:1545-1558.
• [21] Busso E P,Mcclintock F A.A dislocation mechanics-based crystallographic model of a B2-type intermetallic alloy[J].International Journal of Plasticity,1996,12(1):1-28.
• [22] Sellars C M,McTegart W J.On the mechanism of hot deformation[J].Acta Metallurgica,1966,14 (9):1136-1138.
• [23] Zener C,Hollomon J H.Effect of strain rate upon plastic flow of steel[J].Journal of Applied Physics,1944,15(1):22-32.
• [24] Rezaei Ashtiani H R,Parsa M H,Bisadi H.Constitutive equations for elevated temperature flow behavior of commercial purity aluminum[J].Materials Science and Engineering A,2012,545:61-67.
• [25] Fan X G,Yang H,Sun Z C,et al.Quantitative analysis of dynamic recrystallization behavior using a grain boundary evolution based kinetic model[J].Materials Science and Engineering A,2010,527(21/22):5368-5377.
• [26] Lin Y C,Chen X M,Wen D X,et al.A physically-based constitutive model for a typical nickel-based superalloy[J].Computational Materials Science,2014,83:282-289.
• [27] Wu B,Li M Q,Ma D W.The flow behavior and constitutive equations in isothermal compression of 7050 aluminum alloy[J].Materials Science and Engineering A,2012,542:79-87.

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