The effect of post weld natural ageing on mechanical properties of 6000-series aluminum alloys
- Backlund J. ,
- Hindesfelt H. and
- Osikowicz W.
- Backlund J. ,
- Hindesfelt H. and
- Osikowicz W.
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Aluminum 6xxx extrusions are commonly joined with either friction stir welding (FSW) or fusion welding into large-sized assemblies. The assemblies are typically deployed to service in as-welded condition. Mechanical performance of naturally aging welds impacts the design, the quality assessment, production logistics and performance of the products in service. However, availability of relevant long-term data is scarce. Six common 6xxx profile alloys were selected in this study. All alloys were welded in peak aged condition with both FSW and metal inert gas (MIG). While the samples were naturally aging in ambient conditions, the tensile properties of the welds were systematically examined over the period of up to two years. The welds were tested for each combination of alloy, weld method and the natural ageing time.
13th International Symposium, 21-23 May 2024, Session 7: Fundamentals, Paper 01
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