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- Title
Enhancing the Intergranular Corrosion Resistance of the Al–Mg–Si Alloy with Low Zn Content by the Interrupted Aging Treatment.
- Authors
Xu, Xuehong; Deng, Yunlai; Pan, Qinglin; Guo, Xiaobin
- Abstract
The intergranular corrosion (IGC) resistance of the Al–Mg–Si alloy with low Zn addition treated by the interrupted aging treatment (T6I6) was investigated. The IGC results of the Al–Mg–Si alloy show that IGC resistance is enhanced by T6I6 aging treatment. The EIS results reveal that the T6I6-treated Al–Mg–Si alloy has lower double layer capacitance and higher charge transfer resistance than the T6-treated alloy. The superior IGC performance of the T6I6-treated alloy may be attributed to the finer and more densely distributed precipitates within the grains, smaller and discretely distributed precipitates along the grain boundaries and narrower precipitate-free zones (PFZs) compared to the T6-treated alloy.
- Subjects
CORROSION resistance; ALLOYS; CHARGE transfer; CRYSTAL grain boundaries; DETERIORATION of materials
- Publication
Metallurgical & Materials Transactions. Part A, 2021, Vol 52, Issue 11, p4907
- ISSN
1073-5623
- Publication type
Article
- DOI
10.1007/s11661-021-06433-z