About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Processing and Characterization
|
Presentation Title |
High Strength Nanotreated Filler Material for TIG Welding of AA6061 |
Author(s) |
Maximilian Sokoluk, Gongcheng Yao, Shuaihang Pan, Chezheng Cao, Xiaochun Li |
On-Site Speaker (Planned) |
Maximilian Sokoluk |
Abstract Scope |
Advanced, lightweight materials are essential for improving the energy efficiency of modern day vehicles and aircraft. In order to qualify for use in large scale production lines, a material must be readily joinable by fusion welding techniques. However, many of the strongest aluminum alloys exhibit hot-cracking tendencies, if subjected to fusion welding such as arc welding, hindering the widespread application of such materials. To resolve this problem, we developed specifically tailored, nano-treated filler materials for hard to weld aluminum alloys (AA), such as AA7075 and AA2024. The chemical composition of latter filler materials is designed to match its parent alloy’s chemistry to avoid liquation cracking, while a low volume fraction of refractory nanoparticles is added to alter the alloys solidification characteristics, and therefore prevent solidification cracking. Using this technology, the resulting joints are free of cracks and show unprecedented strength in as-welded and Post Weld Heat Treatment conditions. |
Proceedings Inclusion? |
Planned: Light Metals |