|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Integrative Materials Design III: Performance and Sustainability
||Friction Stir Welding of Dissimilar Metals
||Xiangbin Wang, Yi Pan, Diana Lados
|On-Site Speaker (Planned)
Friction stir welding (FSW) is a solid-state welding process that has demonstrated the ability to join both similar and dissimilar alloys, as well as materials unweldable by traditional fusion welding techniques. The objective of this study is to establish relationships between welding parameters and weld quality, resulting microstructures, and mechanical properties. Similar and dissimilar welds using multiple rotation and traverse speed combinations were produced using three heat treated wrought aluminum alloys, 6061-T651, 2024-T351, and 7075-T735. Weld quality was first evaluated to assess and optimize the processing conditions for all studied cases. Microstructural changes were then systematically evaluated and correlated with micro-hardness and tensile properties of the welds. Further, fatigue crack growth behavior of the welds was studied and linked to the characteristic microstructure and residual stress distribution. FSW of 6061-T651 to low-carbon steel was also performed successfully, and the resulting microstructures and mechanical properties will also be presented and discussed.
||Planned: Supplemental Proceedings volume