| Ti6Al4V合金高温拉伸变形Norton-Hoff与Arrhenius本构理论的模型化与比较(英文) |
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| 引用本文： | 张超,李小强,李东升,金朝海,肖军杰.Ti6Al4V合金高温拉伸变形Norton-Hoff与Arrhenius本构理论的模型化与比较(英文)[J].中国有色金属学会会刊,2012(Z2):457-464. |
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| 作者姓名： | 张超 李小强 李东升 金朝海 肖军杰 |
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| 作者单位： | 北京航空航天大学大飞机班;北京航空航天大学材料科学与工程学院;北京航空航天大学机械工程及自动化学院 |
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| 基金项目： | Project (51175022) supported by the National Natural Science Foundation of China;Project (2010ZE51050) supported by the Aviation Science Foundation of China;Project (51318040315) supported by the National Defence Pre-research Program of China |
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| 摘 要： | 为研究Ti6Al4V合金在热成形过程中的力学性能,在923~1023K温度和0.0005~0.05s1应变速率范围内,进行片状试样的恒温高温拉伸试验,采集应力—应变试验数据并建立材料的本构模型。将Arrhenius和Norton-Hoff本构模型用于表征合金的高温拉伸行为。拟合结果显示,考虑材料常数应变补偿的Arrhenius模型和改进的Norton-Hoff模型均可以准确地预测Ti6Al4V合金多数条件下的流变应力,由拟合结果比较可知改进的Norton-Hoff模型比Arrhenius模型更精确。
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| 关 键 词： | Ti6Al4V合金 高温拉伸行为 本构模型 模型化 Arrhenius模型 应变补偿 Norton-Hoff改进模型 |
Modelization and comparison of Norton-Hoff and Arrhenius constitutive laws to predict hot tensile behavior of Ti-6Al-4V alloy |
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| ZHANG Chao,LI Xiao-qiang,LI Dong-sheng,JIN Chao-hai,XIAO Jun-jie.Modelization and comparison of Norton-Hoff and Arrhenius constitutive laws to predict hot tensile behavior of Ti-6Al-4V alloy[J].Transactions of Nonferrous Metals Society of China,2012(Z2):457-464. |
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| Authors: | ZHANG Chao LI Xiao-qiang LI Dong-sheng JIN Chao-hai XIAO Jun-jie |
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| Affiliation: | 1. School of Large Aircraft, Beihang University, Beijing 100191, China; 2. School of Materials Science and Engineering, Beihang University, Beijing 100191, China; 3. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China |
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