蔡皓远,王效岗,邢煜林,成子兴,陈星睿

• 1:太原科技大学高端重型机械装备研究院

摘要(Abstract)：

采用Gleeble-3800热模拟试验机，在变形温度为300～400℃、应变速率为0.05～5 s~(-1)、变形量为30%的条件下对AZ31B/5052双金属进行了单向热压缩试验，研究了其热变形行为，并建立了其本构模型及热加工图。结果表明，在相同的应变速率下，AZ31B/5052双金属的峰值应力随变形温度的升高而降低；在相同的变形温度下，峰值应力随应变速率的增大而增加；使用建立后的本构方程计算的流变应力值与试验的流变应力值有良好的一致性(相关系数r=0.9823和平均相对误差AARE=4.12%),可用于镁/铝双金属热加工过程的数值模拟和工艺参数的确定；根据热加工图和线扫描图谱，确定AZ31B/5052双金属最优的热加工工艺为：变形温度为380～400℃,应变速率为0.05～0.135 s~(-1)。

关键词(KeyWords)： AZ31B/5052双金属;热压缩;本构方程;热加工图

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52275357);; 国家重点研发计划(2018YFA0707304)

作者(Author): 蔡皓远,王效岗,邢煜林,成子兴,陈星睿

DOI: 10.13289/j.issn.1009-6264.2023-0534

参考文献(References)：

• [1] Chen Z,Wang D,Cao X,et al.Influence of multi-pass rolling and subsequent annealing on the interface microstructure and mechanical properties of the explosive welding Mg/Al composite plates[J].Materials Science and Engineering A,2018,723:97-108.
• [2] Chu Q,Zhang M,Li J,et al.Experimental and numerical investigation of microstructure and mechanical behavior of titanium/steel interfaces prepared by explosive welding[J].Materials Science and Engineering A,2017,689:323-331.
• [3] Wu Y,Feng B,Xin Y,et al.Microstructure and mechanical behavior of a Mg AZ31/Al 7050 laminate composite fabricated by extrusion[J].Materials Science and Engineering A,2015,640:454-459.
• [4] Yan Y,Zhang Z,Shen W,et al.Microstructure and properties of magnesium AZ31B-aluminum 7075 explosively welded composite plate[J].Materials Science and Engineering A,2009,527(9):2241-2245.
• [5] Nie H,Liang W,Chen H,et al.A coupled EBSD/TEM study on the interfacial structure of Al/Mg/Al laminates[J].Journal of Alloys and Compounds,2018,781:696-701.
• [6] Wu K,Chang H,Maawad E,et al.Microstructure and mechanical properties of the Mg/Al laminated composite fabricated by accumulative roll bonding (ARB)[J].Materials Science and Engineering A,2010,527(13):3073-3078.
• [7] Gao X,Jiang Z,Wei D,et al.Constitutive analysis for hot deformation behaviour of novel bimetal consisting of pearlitic steel and low carbon steel[J].Materials Science and Engineering A,2014,595:1-9.
• [8] 胡丽萍，Hans Peter Degischer,郭领，等.AZ31B镁合金的热压缩变形研究[J].热加工工艺，2008(12):23-25.HU Li-ping,Hans Peter Degischer,GUO Ling,et al.Study on hot compression deformation of AZ31B magnesium alloy[J].Hot Working Technology,2008(12):23-25.
• [9] He J G,Wen J B,Zhou X D,et al.Hot deformation behavior and processing map of cast 5052 aluminum alloy[J].Procedia Manufacturing,2019,37:2-7.
• [10] 刘蒙.对称/不对称轧制镁铝复合板及其组织性能的研究[D].鞍山：辽宁科技大学，2015.LIU Meng.Microstructure and properties of Mg-Al clad sheets during symmetric/asymmetric rolling[D].Anshan:University of Science and Technology Liaoning,2015.
• [11] Lukaschkin N D,Borissow A P.Interface surface behaviour in the upsetting of sandwich metal sheets[J].Journal of Materials Processing Technology,1996,61(3):292-297.
• [12] Jonas J J,Sellars C M,Tegart W J.Strength and structure under hot-working conditions[J].International Materials Reviews,1969,14(1):1-24.
• [13] Slooff F A,Zhou J,Duszczyk J,et al.Constitutive analysis of wrought magnesium alloy Mg-Al4-Zn1[J].Scripta Materialia,2007,57:759-762.
• [14] Lin Y,Chen M,Zhong J.Constitutive modeling for elevated temperature flow behavior of 42CrMo steel[J].Computational Materials Science,2007,42(3):470-477.
• [15] Li H,Wang H,Li Z,et al.Flow behavior and processing map of as-cast Mg-10Gd-4.8Y-2Zn-0.6Zr alloy[J].Materials Science and Engineering A,2010,528(1):154-160.
• [16] Lin Y,Liu G.A new mathematical model for predicting flow stress of typical high-strength alloy steel at elevated high temperature[J].Computational Materials Science,2009,48(1):54-58.
• [17] He A,Chen L,Hu S,et al.Constitutive analysis to predict high temperature flow stress in 20CrMo continuous casting billet[J].Materials and Design,2013,46:54-60.
• [18] 刘鹏飞，刘东，罗子健，等.GH761合金的热变形行为与动态再结晶模型[J].稀有金属材料与工程，2009,38(2):275-280.LIU Peng-fei,LIU Dong,LUO Zi-jian,et al.Flow behavior and dynamic recrystallization model for GH761 superalloy during hot deformation[J].Rare Metal Materials and Engineering,2009,38(2):275-280.
• [19] Sellars C M,Mctegart W J.On the mechanism of hot deformation[J].Acta Metallurgica,1966,14(9):1136-1138.
• [20] Zener C,Hollomon H J.Effect of strain rate upon plastic flow of steel[J].Journal of Applied Physics,1944,15(1):22-32.
• [21] Paul B,Kapoor R,Chakravartty J K,et al.Hot working characteristics of cobalt in the temperature range 600-950 ℃[J].Scripta Materialia,2009,60(2):104-107.
• [22] Sabokpa O,Zarei-hanzaki A,Abedi H,et al.Artificial neural network modeling to predict the high temperature flow behavior of an AZ81 magnesium alloy[J].Materials and Design,2012,39:390-396.
• [23] Prabhakar M P,Kumar A L.The applicability of neural network model to predict flow stress for carbon steels[J].Journal of Materials Processing Technology,2003,141(2):219-227.
• [24] 李春阳.热加工图绘制新方法及应用研究[D].秦皇岛：燕山大学，2012.LI Chun-yang.Investigation on a new method and application of processing map[D].Qinhuangdao:Yanshan University,2012.
• [25] Prasad Y V R K.Processing maps:A status report[J].Journal of Materials Engineering and Performance,2003,12(6):638-645.
• [26] Prasad Y V R K,Rao K P,Hort N,et al.Optimum parameters and rate-controlling mechanisms for hot working of extruded Mg-3Sn-1Ca alloy[J].Materials Science and Engineering A,2009,502(1/2):25-31.
• [27] Ziegler H.Progress in Solid Mechanics[M].New York:Wiley,1963.
• [28] Macwan A,Jiang X,Li C,et al.Effect of annealing on interface microstructures and tensile properties of rolled Al/Mg/Al tri-layer clad sheets[J].Materials Science and Engineering A,2013,587:344-351.
• [29] Nie H,Liang W,Chi C,et al.Effect of annealing on microstructure and tensile properties of 5052/AZ31/5052 clad sheets[J].JOM,2016,68(5):1282-1292.
• [30] 王跃林.Mg/Al复合板波纹辊轧制成形数值仿真及试验研究[D].太原：太原理工大学，2019.WANG Yue-lin.Numerical simulation and experimental study on roll forming of Mg/Al composite sheets by corrugated roll[D].Taiyuan:Taiyuan University of Technology,2019.

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