| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
The Effect of Cold Rolling Strain Degree in Corrosion Resistance of Fully Soft Temper Automotive 5182 Alloy |
| Author(s) |
Dionysios Spathis, John Tsiros, Andreas Mavroudis, Athanasios Vazdirvanidis |
| On-Site Speaker (Planned) |
Dionysios Spathis |
| Abstract Scope |
5182 is the most common 5xxx series aluminum alloy for the automotive applications. Automotive manufacturers have set strict intergranular corrosion resistance specifications for the specific alloy.
The current paper presents corrosion testing data (ASTM G 67 Nitric Acid Mass Loss Test results) of 5182 alloy in fully soft O temper condition produced by different cold rolling thickness reduction.
Corrosion testing is performed after low temperature heat treatment of O temper material (130 0C and 170 0C for soak time 17 hours) to accelerate Mg precipitation along the grain boundaries.
Increase of cold rolling thickness reduction before final O temper anneal significantly reduce the corrosion resistance of the alloy (increase the corrosion test weight loss values).
Fine grain size seems to reduce 5182 alloy O temper corrosion resistance by reducing the corrosion path length. |
| Proceedings Inclusion? |
Planned: Light Metals |