Study on hydrogen-assisted stress corrosion cracking behavior of 7050 aluminum alloy
The effect of hydrogen on the stress corrosion cracking(SCC) susceptibility of 7050 aluminum alloy in 3.5% wt. NaCl solution was investigated by slow strain rate tensile (SSRT) tests with and without hydrogen pre-charging. The experimental results indicated that the stress corrosion cracking (SCC) m...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425005009 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The effect of hydrogen on the stress corrosion cracking(SCC) susceptibility of 7050 aluminum alloy in 3.5% wt. NaCl solution was investigated by slow strain rate tensile (SSRT) tests with and without hydrogen pre-charging. The experimental results indicated that the stress corrosion cracking (SCC) mechanism of 7050 aluminum alloy is primarily dominated by anodic dissolution, while hydrogen-assisted anodic dissolution during the crack propagation process. The strength and ductility of the aluminum alloy was significantly influenced by hydrogen content. This phenomenon is attributed to hydrogen-induced Mg segregation at grain boundaries, which subsequently facilitates localized anodic dissolution in these regions. |
|---|---|
| ISSN: | 2238-7854 |