The intergranular corrosion susceptibility of 2024 Al alloy during re-ageing after solution treating and cold-rolling

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• 作者：Zhixiu Wang^a ; ^b ; Peng Chen^a ; Hai Li^a ; ^b ; ^{Lehigh_73@163.com} ; Bijun Fang^a ; ^{fangbj@cczu.edu.cn} ; Renguo Song^a ; ^b ; Ziqiao Zheng^c
• 关键词：A. Aluminum alloys ; B. TEM ; B. SEM ; C. Intergranular corrosion ; C. Pitting corrosion
• 刊名：Corrosion Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：156-168
• 全文大小：5997 K
• 卷排序：114

文摘

No intergranular corrosion occured for the peak–re–aged and over–re–aged 2024 Al alloy. Absence of intergranular corrosion in the re–aged samples resulted from no continuous grain boundary S–Al2CuMg phase. Aggregated pits were observed in the over–re–aged samples. Aggregated pitting corrosion was related to the preferential precipitation of S–phase on the dislocation cell walls.