%0 journal article
%@ 1044-5803
%A Srinivasan, P.B.,Zettler, R.,Blawert, C.,Dietzel, W.

%D 2009
%J Materials Characterization
%N 5
%P 389-396 
%R doi:10.1016/j.matchar.2008.10.010
%T A study on the effect of plasma electrolytic oxidation on the stress corrosion cracking behaviour of a wrought AZ61 magnesium alloy and its friction stir weldment
%U https://doi.org/10.1016/j.matchar.2008.10.010
5 
%X Friction stir weldments of a wrought AZ61 magnesium alloy produced in a robotic friction stir welder under optimised welding conditions were characterised for microstructure, mechanical properties, corrosion and stress corrosion cracking (SCC),behaviour. The effect of surface modification in the form of a plasma electrolytic oxidation (PEO) coating on the corrosion behaviour of the weldment was assessed. The weldment exhibited a joint efficiency of 94%, nevertheless, the weld nugget region was found to have a higher susceptibility to SCC than its parent material counterpart. Even though the PEO coating had provided a good resistance to general and pitting corrosion, it could not completely prevent SCC of this weldment in ASTM D1384 solution.