| 双重时效的低温形变热处理对Al-Mg-Si-RE合金力学性能的影响 |
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| 引用本文： | 韦绿梅. 双重时效的低温形变热处理对Al-Mg-Si-RE合金力学性能的影响[J]. 中国有色金属学报, 1998, 0(Z1) |
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| 作者姓名： | 韦绿梅 |
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| 作者单位： | 广西工学院机械工程系 |
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| 摘 要： | 研究了双重时效的低温形变热处理（ＬＴＨＴ）对ＡｌＭｇＳｉＲＥ合金力学性能的影响。双重时效的低温形变热处理使ＡｌＭｇＳｉＲＥ合金获得抗拉强度σｂ＝３５０ＭＰａ，σ０．２＝２９１ＭＰａ和延伸率δ＝６％的最佳综合力学性能。显然用这种处理工艺比用固溶淬火＋时效的普通热处理工艺优越。研究表明，双重时效的低温形变热处理是有效提高ＲＥＡｌ合金强度的一种值得推广的工艺。
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| 关 键 词： | Al-Mg-Si-RE合金 时效 低温形变热处理 力学性能 |
INFLUENCE OF DOUBLE AGING LOW TEMPERATURE HARDENING TRANSFORMATION ON MECHANICAL PROPERTIES OF Al Mg Si RE ALLOY |
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| Abstract: | The influence of double aging low temperature hardening transformation(LTHT) on the mechanical property of Al Mg Si RE alloy was studied. The tensile strength of Al Mg Si RE alloy is greater than 350 MPa and elegonation rate is greater than 6% after the alloy was processed by the low temperature hardening transformation of double aging. Thus, the heat treatment is more advantageous than that of the technology of solid hardening plus aging which is one of the conventional heat treatments. It is shown that the low temperature hardening transformation of double aging is a valuable technology which can improve the strength of Al Mg Si RE alloy effectively. |
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| Keywords: | Al Mg Si RE alloy low temperature hardening transformation aging mechanical properties |
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