| 7075铝合金热压缩变形道次间软化规律研究 |
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| 引用本文： | 林高用,张辉,彭大暑. 7075铝合金热压缩变形道次间软化规律研究[J]. 轻合金加工技术, 2001, 29(2): 22-24 |
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| 作者姓名： | 林高用 张辉 彭大暑 |
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| 作者单位： | 中南大学材料科学与工程系, |
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| 基金项目： | 国家重点基础研究发展规划项目!（973），G19990649008－5。 |
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| 摘 要： | 在Gleeble-1500热模拟试验机上，采用高温等温压缩试验，研究了7075铝合金两道次热压缩变形道次间的软化规律。结果表明，在热压缩变形道次间保温停歇之后，流变应力出现明显的软化现象，保温停歇时间越长，合金软化率越高；变形及停歇保持温度越高，合金软化越严重。
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| 关 键 词： | 7075铝合金 热压缩变形 软化率 工艺控制 |
| 文章编号： | 1007-7235(2001)02-0022-03 |
| 修稿时间： | 2000-09-11 |
Study on Softening Law of 7075 Aluminium Alloy during the Interval between Hot Compression Deformation |
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| LIN Gao-yong,ZHANG Hui,PENG Da-shu. Study on Softening Law of 7075 Aluminium Alloy during the Interval between Hot Compression Deformation[J]. Light Alloy Fabrication Technology, 2001, 29(2): 22-24 |
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| Authors: | LIN Gao-yong ZHANG Hui PENG Da-shu |
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| Abstract: | The softening law of 7075 aluminium alloy during the interval between hot compression deformation was studied by isothermal compression test at Gleeble- 1500 thermal-mechanical simulator. The results show that obvious drop in flow stress was observed after the interval. The softening fraction Fs increased as the time of the isothermal gap prolonged; and the higher the temperature of the deformation and interval, the bigger the softening fraction. |
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| Keywords: | 7075 aluminium alloy hot compression deformation softening fraction |
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