| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7893749 | Corrosion Science | 2018 | 8 Pages |
Abstract
In the present study, the influence of precipitate distribution on the corrosion behaviour of 2A97-T6 Al-Cu-Li alloy in 3.5â¯wt.% NaCl solution is investigated. It is found that localized plastic strain introduced to the alloy during sheet fabrication leads to the formation of dense T1 (Al2CuLi) phase precipitate bands and precipitate-free bands within selected grains during aging. Preferential dissolution of T1 phase in the dense precipitate bands results in intragranular corrosion in the alloy, in the form of corrosion bands. Further, the dissolution of the alloy matrix propagates in the form of crystallographic corrosion pit.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xinxin Zhang, Xiaorong Zhou, Teruo Hashimoto, Bing Liu, Chen Luo, Zhihua Sun, Zhihui Tang, Feng Lu, Yanlong Ma,