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Study of Cu Addition on Precipitation Behaviors and Mechanical Properties in AA6082 Al-Mg-Si Alloy

机译：铜对AA6082 Al-Mg-Si合金中析出行为和力学性能的影响

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The precipitation behaviors and microstructures of nano-precipitates in AA6082 Al-Mg-Si alloy with and without Cu additions during heat treatment process were studied using hardness measurements, TEM, mechanical tests and 3DAP. Meanwhile, the softening process of 6082 alloys with Cu and without Cu, isothermally conditioned at 250°C, has also been investigated. It was found that the rate of age hardening, mechanical properties and thermal stability are higher for the Cu-containing alloy. The TEM and 3DAP observations showed that Q' precipitates were existed after aged at 170°C for 8h in the alloy with Cu addition. Comparing the hardness, mechanical properties and thermal stability curves, it was concluded that the Q' precipitates play a major role in improving the age hardening kinetics and properties of 6082 alloy with Cu addition.

机译：利用硬度测量，透射电镜，力学性能测试和3DAP研究了AA6082 Al-Mg-Si合金在添加和不添加Cu的过程中的沉淀行为和微观结构。同时，还研究了在250°C等温条件下6082有铜和无铜合金的软化过程。发现含铜合金的时效硬化率，机械性能和热稳定性较高。 TEM和3DAP观察表明，添加Cu的合金在170°C时效8h后存在Q'沉淀。通过比较硬度，力学性能和热稳定性曲线，可以得出结论，Q'沉淀物在改善时效动力学和添加Cu的6082合金性能中起着重要作用。

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《2006 BIMW》|2007年|P.825828|共2页
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作者
Man Jin; Jing Li; Guangjie Shao;
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正文语种
中图分类工程材料一般性问题;
关键词
Al-Mg-Si alloy; precipitation; TEM; mechanical properties; thermal stability;

机译：Al-Mg-Si合金;析出; TEM;力学性能;热稳定性;

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4. Length-scale dependent microalloying effects on precipitation behaviors and mechanical properties of Al-Cu alloys with minor Sc addition [J] . L. Jiang, J.K. Li, G. Liu, Materials Science and Engineering . 2015,第juna18期

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7. Study of Cu Addition on Precipitation Behaviors and Mechanical Properties in AA6082 Al-Mg-Si Alloy [C] . Man Jin, Jing Li, Guangjie Shao Conference on Beijing International Materials Week . 2007

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Study of Cu Addition on Precipitation Behaviors and Mechanical Properties in AA6082 Al-Mg-Si Alloy

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