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The microstructure and mechanical properties of friction spot welding (FSpW) 2198-T8 alloy during aging treatment were studied. Whereafter, the fracture process before and after aging treatment was observed by using the in-situ straining transmission electron microscopy method. The results show that fined equiaxed grains remained with predominant T1 phase re-precipitated in the microstrucuture of...
In this study, we investigated the microstructure and mechanical properties in different regions of the friction spot welded 2A97 aluminium–lithium alloy subjected to different heat treatment processes. The 2.0mm thick hot-rolled sheet of 2A97 alloy was successfully welded using friction spot welding method with optimised welding parameters. Afterwards, the as-welded 2A97 joints experienced two subsequent...
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