| About this Abstract |
| Meeting |
Materials Science & Technology 2012
|
| Symposium
|
Symposium on the Fatigue of Materials II: Advances and Emergences in Understanding
|
| Presentation Title |
The Influence of Microstructure on Growth of Small Fatigue Cracks in 6111 Aluminum Alloys |
| Author(s) |
Vir S Nirankari, Mei Li, John Allison |
| On-Site Speaker (Planned) |
Vir S Nirankari |
| Abstract Scope |
Aluminum alloys are of interest to the automotive industry for use on automobile body components. A primary joining method is resistance spot-welding (RSW). In steel structures, spot welds generally have equivalent or superior properties to the base material; however this is not the case in aluminum structures. The purpose of this study is to understand the microstructural effect on small-crack growth behavior in RSW 6111 aluminum sheets that have undergone T6 and paint-bake (PB) heat treatments. The joints consist of a weld nugget where the RSW occurs, a heat-affected zone (HAZ) surrounding the nugget, and the base material. Constant amplitude cyclic tests were conducted to determine fatigue crack growth rates of small cracks through these different regions. |
| Proceedings Inclusion? |
Definite: A combination print-CD volume |