| About this Abstract |
| Meeting |
2016 TMS Annual Meeting & Exhibition
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| Symposium
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Aluminum Alloys, Processing and Characterization
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| Presentation Title |
Fusion Weld Joint Properties of Aluminum Base Metal 7020 and Filler Metals 5087, 5556A, and Al-Mg6-Zr |
| Author(s) |
, Nick Kapustka, Seth Shira |
| On-Site Speaker (Planned) |
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| Abstract Scope |
Abstract
The study determines weld joint characteristics of high strength aluminum (Al), fusion weld filler metals, AA5087 and AA5556A; and Al-Mg6-Zr alloys, fusion welded with the gas metal arc weld (GMAW) pulse (P) and spray (S) methods to AA7020-T651 Al. The study qualifies pulse and spray weld method weld joints of 25-mm and 40-mm thick Al 7020-T651 plates with visual, radiographic, and metallographic examinations, and bend and tension tests. These fusion weld filler metals and compositions have capabilities to better match the high strength levels of candidate Al structural and protection materials, e.g. Al-Zn-Mg 7020, for application to land vehicles. The 7020 alloy has demonstrated improved durability and shock resistance over the 7017 or 7039 alloys, and improved yield strengths over 5083 and 6061 Al; therefore high strength Al, with tough, ductile, weld joints may provide improved crash safety and protection by means of a rigid vehicle structure.
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| Proceedings Inclusion? |
Planned: Light Metals Volume |