| 6063铝合金高温流变本构方程 |
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| 引用本文： | 王孟君,杨立斌,甘春雷,彭大暑. 6063铝合金高温流变本构方程[J]. 华中科技大学学报(自然科学版), 2003, 31(6): 20-22 |
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| 作者姓名： | 王孟君 杨立斌 甘春雷 彭大暑 |
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| 作者单位： | 中南大学材料科学与工程学院 |
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| 基金项目： | 华中科技大学塑性成形模拟及模具技术国家重点实验室访问学者基金资助项目 |
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| 摘 要： | 采用圆柱试样在G1eeb1e—1500热模拟机上进行高温等温压缩实验，研究了6063铝合金在高温塑性变形过程中流变应力的变化规律．结果表明：应变速率和变形温度的变化强烈地影响6063铝合金流变应力，流变应力随变形温度升高而降低，随应变速率提高而增大，在高应变速率下出现明显的动态软化．
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| 关 键 词： | 6063铝合金 热压缩变形 高温流变应力 本构方程 |
| 文章编号： | 1671-4512(2003)06-0020-03 |
| 修稿时间： | 2002-12-03 |
Constitutive equation of the flow for 6063 aluminium alloy at elevated temperature |
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| Wang Mengjun Yang Libin Gan Chunlei Peng Dashu. Constitutive equation of the flow for 6063 aluminium alloy at elevated temperature[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2003, 31(6): 20-22 |
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| Authors: | Wang Mengjun Yang Libin Gan Chunlei Peng Dashu |
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| Affiliation: | Wang Mengjun Yang Libin Gan Chunlei Peng Dashu |
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| Abstract: | The flow stress behavior of 6063 aluminium alloy duri ng plastic deformation at elevated temperature was studied by isothermal compressi on test on a Gleeble-1500 thermal-mechanical simulator. The results showed tha t the flow stress was influenced by both strain rate and deformation temperature , and the flow stress decreased with the increase of temperature, while increase d with the increase of strain rate. It was shown that dynamic softening appeared at high strain rate. |
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| Keywords: | Al alloy hot compression deformation high temperature flow stress constitutive equation |
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