Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11007807 | Corrosion Science | 2018 | 9 Pages |
Abstract
In the present study, the corrosion behaviour of AA6082 Al-Mg-Si alloy extrusion, consisting of a recrystallized surface region and non-recrystallized fibre structure core, is investigated. It is found that the corrosion penetration rate and propagation path are closely related to grain structure and local plastic deformation. Corrosion morphology changes from intergranular corrosion in recrystallized region to both intergranular and intragranular corrosion of the heavily deformed subgrains in non-recrystallized region. Further, local plastic deformation is quantified by electron backscatter diffraction and transmission Kikuchi diffraction and correlated to corrosion propagation path.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xinxin Zhang, Xiaorong Zhou, Jan-Olov Nilsson, Zehua Dong, Changrun Cai,