Al-8.8Zn-1.4Mg-0.5Cu-0.1Sc-0.1Er-0.1Zr合金的热变形行为及热加工图
Hot Deformation Behavior and Hot Processing Map of Al-8.8Zn-1.4Mg-0.5Cu-0.1Sc-0.1Er-0.1Zr Alloy
摘 要
采用Gleeble-3800型热模拟试验机对Al-8.8Zn-1.4Mg-0.5Cu-0.1Sc-0.1Er-0.1Zr合金在变形温度380~440℃，应变速率0.01~10 s-1，变形量45%，60%条件下进行等温压缩试验，研究了该合金的热变形行为，构建了变形本构方程和基于动态材料模型的热加工图，确定了最佳热加工工艺参数区间，并对特征区的组织进行了分析。结果表明：试验合金的等温压缩过程具有等温流变特征、正应变速率和负温度敏感性；在试验范围内最佳的热加工工艺参数为变形温度425~440℃、应变速率0.01~0.02 s-1；合金的失稳区主要发生在大变形量、低变形温度、高应变速率条件，组织中位错塞积和绝热剪切带的出现是试验合金发生失稳的主要原因。
等温压缩
本构方程
热加工图
位错塞积
绝热剪切带
aluminum alloy
isothermal compression
constitutive equation
hot processing map
dislocation pile-up
adiabatic shear band
Abstract
Al-8.8Zn-1.4Mg-0.5Cu-0.1Sc-0.1Er-0.1Zr alloy was subjected to isothermal compression tests on Gleeble 3800 thermal simulation testing machine under conditions of deformation temperature of 380-440℃, strain rate of 0.01-10 s-1 and deformation amount of 45%, 60%. The hot deformation behavior of the alloy was studied, and the deformation constitutive equation and hot processing map based on dynamic material model were established. The best range of hot processing parameters was confirmed, and the microstructure of characteristic zone was observed. The results show that test alloy showed characteristics of isothermal rheological, sensitivity of positive strain rate and negative temperature. The best range of hot processing parameters within test range was deformation temperature of 425-440℃ and strain rate of 0.01-0.02 s-1. The instability zone of the alloy mainly appeared in the condition of large strain, low deformation temperature and large deformation amount. The dislocation pile-up and adiabatic shear band in the microstructure were main reasons for the instability of test alloy.
中图分类号 TG146.2 DOI 10.11973/jxgccl202203013
所属栏目 物理模拟与数值模拟
基金项目
收稿日期 2021/7/7
修改稿日期 2022/2/3
网络出版日期
作者单位点击查看
备注邢清源(1989-),男,辽宁鞍山人,工程师,硕士
引用该论文: XING Qingyuan,HE Weiwei,WANG Hailong,YANG Shoujie. Hot Deformation Behavior and Hot Processing Map of Al-8.8Zn-1.4Mg-0.5Cu-0.1Sc-0.1Er-0.1Zr Alloy[J]. Materials for mechancial engineering, 2022, 46(3): 75～82
邢清源,何维维,王海龙,杨守杰. Al-8.8Zn-1.4Mg-0.5Cu-0.1Sc-0.1Er-0.1Zr合金的热变形行为及热加工图[J]. 机械工程材料, 2022, 46(3): 75～82
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】李文斌, 潘清林, 邹亮, 等.含Sc的超高强Al-Zn-Cu-Mg-Zr合金的晶间腐蚀和剥落腐蚀行为[J].航空材料学报, 2008, 28(1):53-58. LI W B, PAN Q L, ZOU L, et al.Intergranular and exfoliation corrosion behaviour of high strength Al-Zn-Cu-Mg-Zr alloy containing Sc[J].Journal of Aeronautical Materials, 2008, 28(1):53-58.
【2】王紫悦, 陈子勇, 聂祚仁.微量Er对Al-Zn-Mg-Cu合金组织与性能的影响[J].热加工工艺, 2015, 44(2):118-120. WANG Z Y, CHEN Z Y, NIE Z R.Effects of trace Er on mechanical properties and microstructure of Al-Zn-Mg-Cu aluminum alloy[J].Hot Working Technology, 2015, 44(2):118-120.
【3】王旭东, 聂祚仁, 林双平, 等.Er对Al-Zn-Mg-Cu合金抗腐蚀性能的影响[J].特种铸造及有色合金, 2009, 29(1):76-78. WANG X D, NIE Z R, LIN S P, et al.Effects of trace erbium on corrosion resistance of Al-Zn-Mg alloy[J].Special Casting &Nonferrous Alloys, 2009, 29(1):76-78.
【4】邢清源, 杨守杰, 李晓玲, 等.Sc、Er元素在Al-Zn-Mg合金中的作用机理研究[J].铸造, 2019, 68(2):144-151. XING Q Y, YANG S J, LI X L, et al.Study on mechanism of Sc and Er elements in Al-Zn-Mg alloy[J].Foundry, 2019, 68(2):144-151.
【5】黄兰萍, 陈康华, 李松.微量Zr、Er对Al-Zn-Mg合金组织与性能的影响[J].稀有金属材料与工程, 2009, 38(10):1778-1782. HUANG L P, CHEN K H, LI S.Effects of trace Zr and Er on microstructure and properties of Al-Zn-Mg alloys[J].Rare Metal Materials and Engineering, 2009, 38(10):1778-1782.
【6】李文斌, 潘清林, 梁文杰, 等.含Sc超高强Al-Zn-Cu-Mg-Sc-Zr合金的热压缩变形流变应力[J].中国有色金属学报, 2008, 18(5):777-782. LI W B, PAN Q L, LIANG W J, et al.Flow stress of super-high strength Al-Zn-Cu-Mg-Sc-Zr alloy containing Sc under hot compression deformation[J].The Chinese Journal of Nonferrous Metals, 2008, 18(5):777-782
【7】翟彩华, 冯朝辉, 柴丽华, 等.X2A66铝锂合金等温压缩时的流变变形行为[J].稀有金属材料与工程, 2017, 46(1):90-96. ZHAI C H, FENG C H, CHAI L H, et al.Rheological deformation behavior of X2A66 aluminum lithium alloy during isothermal compression[J].Rare Metal Materials and Engineering, 2017, 46(1):90-96.
【8】傅垒, 王宝雨, 周靖, 等.6111铝合金热变形行为及本构方程[J].塑性工程学报, 2013, 20(2):107-111. FU L, WANG B Y, ZHOU J, et al.Constitutive equation for hot deformation behavior of 6111 aluminum alloy[J].Journal of Plasticity Engineering, 2013, 20(2):107-111.
【9】ZENER C, HOLLOMON J H.Effect of strain rate upon plastic flow of steel[J].Journal of Applied Physics, 1944, 15(1):22-32.
【10】李慧中, 张新明, 陈明安, 等.2519铝合金热变形流变行为[J].中国有色金属学报, 2005, 15(4):621-625. LI H Z, ZHANG X M, CHEN M G, et al.Hot deformation behavior of 2519 aluminum alloy[J].The Chinese Journal of Nonferrous Metals, 2005, 15(4):621-625.
【11】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.
【12】Prasad Y V R K.Processing maps:A status report[J].Journal of Materials Engineering and Performance, 2003, 12(6):638-645.
【13】韦莉莉, 潘清林, 周坚, 等.Al-Zn-Mg-Cu-Zr合金加工图的构建及失稳分析[J].中南大学学报(自然科学版), 2013, 44(5):1798-1805. WEI L L, PAN Q L, ZHOU J, et al.Processing maps and flow instability analysis of Al-Zn-Mg-Cu-Zr alloy[J].Journal of Central South University (Science andTechnology), 2013, 44(5):1798-1805.
【14】RAMANATHAN S, KARTHIKEYAN R, GUPTA M.Development of processing maps for Al/SiCp composite using fuzzy logic[J].Journal of Materials Processing Technology, 2007, 183(1):104-110.
【2】王紫悦, 陈子勇, 聂祚仁.微量Er对Al-Zn-Mg-Cu合金组织与性能的影响[J].热加工工艺, 2015, 44(2):118-120. WANG Z Y, CHEN Z Y, NIE Z R.Effects of trace Er on mechanical properties and microstructure of Al-Zn-Mg-Cu aluminum alloy[J].Hot Working Technology, 2015, 44(2):118-120.
【3】王旭东, 聂祚仁, 林双平, 等.Er对Al-Zn-Mg-Cu合金抗腐蚀性能的影响[J].特种铸造及有色合金, 2009, 29(1):76-78. WANG X D, NIE Z R, LIN S P, et al.Effects of trace erbium on corrosion resistance of Al-Zn-Mg alloy[J].Special Casting &Nonferrous Alloys, 2009, 29(1):76-78.
【4】邢清源, 杨守杰, 李晓玲, 等.Sc、Er元素在Al-Zn-Mg合金中的作用机理研究[J].铸造, 2019, 68(2):144-151. XING Q Y, YANG S J, LI X L, et al.Study on mechanism of Sc and Er elements in Al-Zn-Mg alloy[J].Foundry, 2019, 68(2):144-151.
【5】黄兰萍, 陈康华, 李松.微量Zr、Er对Al-Zn-Mg合金组织与性能的影响[J].稀有金属材料与工程, 2009, 38(10):1778-1782. HUANG L P, CHEN K H, LI S.Effects of trace Zr and Er on microstructure and properties of Al-Zn-Mg alloys[J].Rare Metal Materials and Engineering, 2009, 38(10):1778-1782.
【6】李文斌, 潘清林, 梁文杰, 等.含Sc超高强Al-Zn-Cu-Mg-Sc-Zr合金的热压缩变形流变应力[J].中国有色金属学报, 2008, 18(5):777-782. LI W B, PAN Q L, LIANG W J, et al.Flow stress of super-high strength Al-Zn-Cu-Mg-Sc-Zr alloy containing Sc under hot compression deformation[J].The Chinese Journal of Nonferrous Metals, 2008, 18(5):777-782
【7】翟彩华, 冯朝辉, 柴丽华, 等.X2A66铝锂合金等温压缩时的流变变形行为[J].稀有金属材料与工程, 2017, 46(1):90-96. ZHAI C H, FENG C H, CHAI L H, et al.Rheological deformation behavior of X2A66 aluminum lithium alloy during isothermal compression[J].Rare Metal Materials and Engineering, 2017, 46(1):90-96.
【8】傅垒, 王宝雨, 周靖, 等.6111铝合金热变形行为及本构方程[J].塑性工程学报, 2013, 20(2):107-111. FU L, WANG B Y, ZHOU J, et al.Constitutive equation for hot deformation behavior of 6111 aluminum alloy[J].Journal of Plasticity Engineering, 2013, 20(2):107-111.
【9】ZENER C, HOLLOMON J H.Effect of strain rate upon plastic flow of steel[J].Journal of Applied Physics, 1944, 15(1):22-32.
【10】李慧中, 张新明, 陈明安, 等.2519铝合金热变形流变行为[J].中国有色金属学报, 2005, 15(4):621-625. LI H Z, ZHANG X M, CHEN M G, et al.Hot deformation behavior of 2519 aluminum alloy[J].The Chinese Journal of Nonferrous Metals, 2005, 15(4):621-625.
【11】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.
【12】Prasad Y V R K.Processing maps:A status report[J].Journal of Materials Engineering and Performance, 2003, 12(6):638-645.
【13】韦莉莉, 潘清林, 周坚, 等.Al-Zn-Mg-Cu-Zr合金加工图的构建及失稳分析[J].中南大学学报(自然科学版), 2013, 44(5):1798-1805. WEI L L, PAN Q L, ZHOU J, et al.Processing maps and flow instability analysis of Al-Zn-Mg-Cu-Zr alloy[J].Journal of Central South University (Science andTechnology), 2013, 44(5):1798-1805.
【14】RAMANATHAN S, KARTHIKEYAN R, GUPTA M.Development of processing maps for Al/SiCp composite using fuzzy logic[J].Journal of Materials Processing Technology, 2007, 183(1):104-110.
相关信息
