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通过热模拟压缩试验,对TB8钛合金β相变点附近的高温变形行为进行了研究.热模拟压缩试验的变形温度为650~900℃,应变速率为0.01~10 s-1.通过试验分别得到了TB8钛合金双相区(α+β)和单相区(β)的流变应力曲线,并分别研究了流变应力与变形温度、应变速率和微观组织演化的关系.在10 s-1的高应变速率下,真应力-真应变曲线在850和900℃出现了双峰,这一现象未见报道.通过本构关系推导,得到了TB8钛合金双相区(α+β)和单相区(β)的表观激活能分别为233.0151和197.8987 kJ/mol.另外,建立了TB8钛合金双相区(α+β)和单相区(β)相应的流变应力本构方程.

参考文献

[1] Yu Dongmei .[J].Aircraft Design,2002,2:57.
[2] Li Miaoquan;Pan Hongsi;Lin Yingying et al.[J].Journal of Materials Processing Technology,2007,183:71.
[3] Zhu Y C;Zeng W D;Liu J L et al.[J].Materials & Design,2012,33:264.
[4] Cui Chunxiang;Hu BaoMin;Zhao Lichen;Liu Shuangjin .Titanium alloy production technology, market prospects and industry development[J].Materials & design,2011(3):1684-1691.
[5] Sun Q J;Wang G C;Li M Q .[J].Materials & Design,2011,32(07):3893.
[6] Gurrappa I;Venugopala Reddy D .[J].Journal of Alloys and Compounds,2005,390:270.
[7] Zhao Y Q;Xin S W;Zeng W D .[J].Journal of Alloys and Compounds,2009,481:190.
[8] Gabriel S B;Panaino J V P;Santos I D et al.[J].Journal of Alloys and Compounds,2012,536(S):208.
[9] Chang Mingchih;Luo Chinwan;Huang Maosuan et al.[J].Journal of Alloys and Compounds,2010,499:171.
[10] DUAN Yuan-pei,LI Ping,XUE Ke-min,ZHANG Qing,WANG Xiao-xi.Flow behavior and microstructure evolution of TB8 alloy during hot deformation process[J].中国有色金属学会会刊(英文版),2007(06):1199-1204.
[11] Xue Kemin;Duan Yuanpei;Li Ping.[J].Journal of Materials Engineering,2007(S 1):57.
[12] Johnston W G;Gilman J J .[J].Journal of Applied Physics,1959,30:129.
[13] Sellars C M;Mctegart W J .[J].Acta Metallurgica,1966,14(09):1136.
[14] Seshacharyulu T;Medeiros S C;Morgan J T;Malas J C;Frazier W G;Prasad Y V R K .Hot deformation mechanisms in ELI grade Ti-6Al-4V.[J].Scripta materialia,1999(3):283-288.
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