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Effect of interrupted ageing treatment on the mechanical properties and intergranular corrosion behavior of Al-Mg-Si alloys

机译:中断老化处理对Al-Mg-Si合金机械性能和晶间腐蚀行为的影响

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In this study, the influence of interrupted ageing treatment on the mechanical properties and intergranular corrosion (IGC) behavior of Al-Mg-Si alloy was investigated. The results show that mechanical properties (strength and elongation) and IGC resistance of the inter- rupted ageing T6I6 alloys are enhanced simultaneously as compared to the T6 alloys. After treated by the interrupted ageing T6I6, the microstructure of the studied alloy consists of small size and high quantity density beta '' precipitated phase in the Al matrix, discontinu- ously distributed grain boundary precipitates (GBPs) and narrow precipitation free zones (PFZs). The increment of mechanical properties and the improvement of IGC resistance are attributed to the type microstructures in the Al-Mg-Si alloy. (C) 2019 The Authors. Published by Elsevier B.V.
机译:在本研究中,研究了研究中断老化处理对Al-Mg-Si合金的机械性能和晶间腐蚀(IGC)行为的影响。 结果表明,与T6合金相比,相互突破的老化T6I6合金的机械性能(强度和伸长率)和IGC电阻同时增强。 通过中断老化T6I6处理后,研究的合金的微观结构包括小尺寸和高量密度β''在Al基质中沉淀相,分布式晶界沉淀物(Gbps)和窄沉淀自由区(PFZ) 。 机械性能的增量和IGC电阻的提高归因于Al-Mg-Si合金中的微观结构。 (c)2019年作者。 elsevier b.v出版。

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