周峰,王克鲁,鲁世强,李鑫,刘建军,程静

• 1:南昌航空大学航空制造工程学院

摘要(Abstract)：

利用Gleeble-3500热模拟试验机对Ti-22Al-24Nb-0.5Y合金试样进行等温恒应变速率压缩试验,分析了合金的高温流动行为,考虑温度对Young’s模量和自扩散系数的影响以及真应变对流动应力的影响,构建了Ti-22Al-24Nb-0.5Y合金的物理本构模型。结果表明:合金的流动应力随变形温度的升高而减小,随应变速率的增加而增大;构建的物理本构模型能较好地预测合金的高温压缩过程中流动应力,其相关系数R达到0.983,预测值偏差在10%以内的数据点占91.17%,平均相对误差E为8.43%,其中平均相对误差小于10%的数据点占90.58%。

关键词(KeyWords)： Ti-22Al-24Nb-0.5Y合金;高温流动行为;物理本构模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51464035)

作者(Author): 周峰,王克鲁,鲁世强,李鑫,刘建军,程静

DOI: 10.13289/j.issn.1009-6264.2018-0339

参考文献(References)：

• [1] Banerjee D,Gogia A K,Nandi T K,et al.A new ordered orthorhombic phase in a Ti3Al-Nb alloy[J].Acta Metallurgica,1988,36(4):871-882.
• [2] Zhang Q C,Chen M H,Wang H,et al.Thermal deformation behavior and mechanism of intermetallic alloy Ti2AlNb[J].Transactions of Nonferrous Metals Society of China,2016,26(3):722-728.
• [3] 任蓓蕾,缪强,梁文萍,等.渗铝温度对Ti2AlNb合金高温抗氧化性能的影响[J].材料热处理学报,2015,36(12):241-246.REN Bei-lei,MIAO Qiang,LIANG Wen-ping,et al.Effect of surface aluminizing temperature on oxidation resistance of Ti2AlNb alloy[J].Transactions of Materials and Heat Treatment,2015,36(12):241-246.
• [4] Sim K H,Wang G,Son R C,et al.Influence of mechanical alloying on the microstructure and mechanical properties of powder metallurgy Ti2AlNb-based alloy[J].Powder Technology,2017,317:133-141.
• [5] 周峰,王克鲁,鲁世强,等.固溶时间对Ti-22Al-24Nb合金力学性能及断裂行为的影响[J].材料热处理学报,2018,39(7):49-54.ZHOU Feng,WANG Ke-lu,LU Shi-qiang,et al.Effect of solution time on mechanical properties and fracture behavior of Ti-22Al-24Nb alloy[J].Transactions of Materials and Heat Treatment,2018,39(7):49-54.
• [6] Germann L,Banerjee D,Guédou J Y,et al.Effect of composition on the mechanical properties of newly developed Ti2AlNb-based titanium aluminide[J].Intermetallics,2005,13(9):920-924.
• [7] 田伟,钟燕,梁晓波,等.Ti-22Al-25Nb合金环形件成形工艺与组织性能关系[J].材料热处理学报,2014,35(10):49-52.TIAN Wei,ZHONG Yan,LIANG Xiao-bo,et al.Relationship between forming process and microstructure-properties of Ti-22Al-25Nb alloy ring[J].Transactions of Materials and Heat Treatment,2014,35(10):49-52.
• [8] 张建伟,李世琼,梁晓波,等.Ti3Al和Ti2AlNb基合金的研究与应用[J].中国有色金属学报,2010,20(b10):336-341.ZHANG Jian-wei,LI Shi-qiong,LIANG Xiao-bo,et al.Research and application of Ti3Al and Ti2AlNb based alloys[J].The Chinese Journal of Nonferrous Metals,2010,20(b10):336-341.
• [9] 郭和平,曾元松,李志强.O相合金Ti2AlNb的超塑性研究进展[J].航空制造技术,2009(10):64-67.GUO He-ping,ZENG Yuan-song,LI Zhi-qiang.Research progress of superplasticity of intermetallic Ti2AlNb orthorhombic alloys[J].Aeronautical Manufacturing Technology,2009(10):64-67.
• [10] 陈学文,王纳纳,皇涛,等.超超临界转子用X12钢高温变形行为及基于应变补偿的本构模型[J].材料热处理学报,2018,39(5):134-140.CHEN Xue-wen,WANG Na-na,HUANG Tao,et al.Hot deformation behavior of X12 steel forultra-supercritical rotor andits constitutive model based on strain compensation[J].Transactions of Materials and Heat Treatment,2018,39(5):134-140.
• [11] 尤雪磊,华建社,姚渭,等.细晶TC4钛合金两种本构模型的对比[J].材料热处理学报,2015,36(8):237-242.YOU Xue-lei,HUA Jian-she,YAO Wei,et al.Comparision on two kinds of constitutive model for fine grain TC4 titanium alloy[J].Transactions of Materials and Heat Treatment,2015,36(8):237-242.
• [12] Hajari A,Morakabati M,Abbasi S M,et al.Constitutive modeling for high-temperature flow behavior of Ti-6242S alloy[J].Materials Science and Engineering A,2017,681:103-113.
• [13] Wang Y S,Linghu R K,Liu Y Y,et al.Superplasticity and constitutive relationship in a Ti-based metallic glassy composite[J].Journal of Alloys and Compounds,2018,751:391-398.
• [14] Li L,Li M.Constitutive model and optimal processing parameters of TC17 alloy with a transformed microstructure via kinetic analysis and processing maps[J].Materials Science and Engineering A,2017,698:302-312.
• [15] Cabrera J M,Omar A A,Prado J M,et al.Modeling the flow behavior of a medium carbon microalloyed steel under hot working conditions[J].Metallurgical and Materials Transactions A,1997,28(11):2233-2244.
• [16] Mirzadeh H.Constitutive analysis of Mg-Al-Zn magnesium alloys during hot deformation[J].Mechanics of Materials,2014,77(77):80-85.
• [17] Wang S,Luo J R,Hou L G,et al.Physically based constitutive analysis and microstructural evolution of AA7050 aluminum alloy during hot compression[J].Materials and Design,2016,107:277-289.
• [18] Wei H L,Liu G Q,Zhang M H.Physically based constitutive analysis to predict flow stress of medium carbon and vanadium microalloyed steels[J].Materials Science and Engineering A,2014,602(602):127-133.
• [19] 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.
• [20] 司玉锋,孔凡涛,陈玉勇,等.固溶温度对Ti-23Al-25Nb-0.36Y合金显微组织及性能的影响[J].金属热处理,2007(5):59-62.SI Yu-feng,KONG Fan-tao,CHEN Yu-yong,et al.Effects of solution temperature on microstructures and properties of Ti-23Al-25Nb-0.36Y alloy[J].Heat Treatment of Metals,2007(5):59-62.
• [21] Kong F T,Chen Y Y,Li B H.Influence of yttrium on the high temperature deformability of TiAl alloys[J].Materials Science and Engineering A,2009,499(1/2):53-57.
• [22] Liu H Y,Tang H P,He W W,et al.Properties evolution of a powder metallurgical titanium alloy with yttrium addition[J].Rare Metal Materials and Engineering,2011,40(s3):298-300.
• [23] 张毅,柴哲,许倩倩,等.Cu-0.8Cr-0.3Zr合金热变形行为及热加工图[J].材料热处理学报,2015,36(11):7-12.ZHANG Yi,CHAI Zhe,XU Qian-qian,et al.Hot deformation behavior of Cu-0.8Cr-0.3Zr alloy[J].Transactions of Materials and Heat Treatment,2015,36(11):7-12.
• [24] Qian L,Zhou L,Si L,et al.High-temperature deformation behavior of Cu-6.0Ni-1.0Si-0.5Al-0.15Mg-0.1Cr alloy[J].Journal of Materials Science,2012,47(16):6034-6042.
• [25] 向嵩,鞠泉,刘国权.15Cr-25Ni-Fe基高温合金的动态再结晶行为及机制[J].江苏大学学报(自然科学版),2010,31(6):665-669.XIANG Song,JU Quan,LIU Guo-quan.Dynamic recrystallization mechanism of 15Cr-25Ni-Fe base superalloy[J].Journal of Jiangsu University (Natural Science Edition),2010,31(6):665-669.
• [26] 李少雨.Ti2AlNb基合金相变及超塑性变形机理研究[D].哈尔滨:哈尔滨工业大学,2013:61-71.LI Shao-yu.Phase transformation and superplasticity deformation mechanism in Ti2AlNb-based alloys[D].Harbin:Harbin Institute of Technology,2013:61-71.
• [27] Jia J,Liu W,Xu Y,et al.Microstructure evolution,B2 grain growth kinetics and fracture behavior of a powder metallurgy Ti-22Al-25Nb alloy fabricated by spark plasma sintering[J].Materials Science and Engineering A,2018,730:106-118.
• [28] 许密,陈进武,曾宪波.O相Ti-22Al-[Nb(27-x)Vx]合金力学性质的第一原理计算[J].稀有金属,2010,34(6):817-822.XU Mi,CHEN Jin-wu,ZENG Xian-bo.First principle calculation on mechanical properties of O phase Ti-22Al-[Nb(27-x)Vx] alloys[J].Chinese Journal of Rare Metals,2010,34(6):817-822.

文章评论(Comment)：