About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Development in Light Weight Alloys and Composites
|
Presentation Title |
Delayed Aging in Aluminum Alloys |
Author(s) |
Ramachandra Canumalla, Samuel Meyer |
On-Site Speaker (Planned) |
Ramachandra Canumalla |
Abstract Scope |
“Delayed Aging” is a term used for the delay at room temperature between “Solution treatment & Quenching” and “artificial aging” resulting in a loss in mechanical properties. This has scientific and industrial importance. Deterioration in properties due to delayed aging was observed in various classes of aluminum alloys namely 2XXX, 6XXX and 7XXX. There are differences between these various classes of aluminum alloys due to delayed Aging. There is a significant drop in strength properties in 6XXX alloys compared to other classes of alloys. The differences in these alloys are explained with the help of Pashley’s Kinetic model. Data in the open literature was reviewed and ways to mitigate the debit in the mechanical properties by employing the “diffusion on demand” concept with trace additions, cold storage or refrigeration, V shape behavior with delayed aging depending on the alloy system and any other have been highlighted. |