%0 journal article
%@ 1362-1718
%A Wang, F.F., Li, W.Y., Shen, J., Zhang, Z.H., Li, J.L., dos Santos, J.F.

%D 2016
%J Science and Technology of Welding and Joining
%N 6
%P 479-483 
%R doi:10.1080/13621718.2015.1132128
%T Global and local mechanical properties and microstructure of Bobbin tool friction-stir-welded Al–Li alloy
%U https://doi.org/10.1080/13621718.2015.1132128
6 
%X AA2198–T851 sheets were welded by bobbin tool friction stir welding using a rotational speed of 800 rpm and welding speed of 42 mm min−1. The microstructure and precipitates within the joint were characterised by transmission electron microscopy. The global and local mechanical behaviour was determined using a digital image correlation system. Specific attention was given to the relationship between the local microstructure and properties across the joint, which govern the global strength and ductility of the welds. A lower global elongation of the joint is caused by the premature strain localisation in the softened zone.