About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
Presentation Title |
Localized Corrosion Behavior of Aged High Zinc 7068 Aluminium Alloy |
Author(s) |
Ankur Kumar, G P Chaudhari, S K Nath |
On-Site Speaker (Planned) |
Ankur Kumar |
Abstract Scope |
It is reported that over-ageing is less effective in developing SCC-resistant high-zinc 7xxx series aluminum alloys. Therefore, SCC performance of > 7 wt% zinc containing 7068 alloy needs to be evaluated in different ageing conditions. Microstructures after different ageing treatments are correlated with mechanical properties, intergranular corrosion (IGC) and SCC susceptibility. Dissolution of second phase precipitates occurred from selective leaching of magnesium and aluminum. Besides overaged alloy, the peak aged alloy also exhibited higher resistance to IGC and SCC. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Environmental Effects, Mechanical Properties |