| 7075和2024铝合金的固溶组织与力学性能 |
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| 引用本文： | 陈康华,刘允中,刘红卫.7075和2024铝合金的固溶组织与力学性能[J].中国有色金属学报,2000,10(6):819-822. |
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| 作者姓名： | 陈康华 刘允中 刘红卫 |
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| 作者单位： | 中南工业大学粉末冶金国家重点实验室,长沙 |
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| 基金项目： | 国家重点基础研究发展规划项目!(G19990 6 490 0 )，高等学校骨干教师资助项目 |
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| 摘 要： | 研究了升温固溶处理对提高７０７５和２０２４铝合金的结晶相固溶程度和力学性能的影响，升温固溶可使最终固溶温度超过多相共晶温度而不产生过烧组织，提高结晶相固溶程度。７０７５合金的结晶相较２０２４合金的易于固溶，两种合金的力学性能与固溶程度密切相关。强化固溶的７０７５合金强度提高约２０％，断裂和屈服强度可达６６０ＭＰａ和６０６ＭＰａ，其性能提高的幅度大于强化固溶的２０２４合金。
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| 关 键 词： | 铝合金 热处理 力学性能 第二相 固溶处理 |
Microstructure and mechanical properties of enhanced solution treated 7075 and 2024 aluminum alloys |
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| CHEN Kang hua,LIU Yun zhong,LIU Hong wei.Microstructure and mechanical properties of enhanced solution treated 7075 and 2024 aluminum alloys[J].The Chinese Journal of Nonferrous Metals,2000,10(6):819-822. |
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| Authors: | CHEN Kang hua LIU Yun zhong LIU Hong wei |
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| Abstract: | The effects of enhanced solution of second phases on the microstructure and mechanical properties of alloys 7075 and 2024 were studied. The results show that the temperature incremental solution treatment can make the final solution temperature higher than the multi phase eutectic temperature without the formation of overheated microstructure, and improve the second phase solution. In contrast to alloy 2024, the second phases in alloy 7075 can dissolve more completely. The mechanical properties of these two alloys depend considerably on the second phase solution. By incremental solution treatment, the ultimate tensile strength and yield strength of 7075 alloys can be raised about 20%, to 660 MPa and 606 MPa respectively. |
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| Keywords: | aluminum alloy heat treatment enhanced solution mechanical properties second phases |
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