Corrosion Fatigue Behaviour of Aluminium 5083-H111 Welded Using Gas Metal Arc Welding Method

Abstract

This investigation therefore aimed at studying the mechanical properties and corrosion fatigue performance of 5083-H111 aluminium welded using semi-automatic and fully automatic pulsed gas metal arc welding, and ER4043, ER5183 and ER5356 filler wires. The influence of the weld metal and heat-affected zone, weld defects and the weld geometry on the mechanical properties and corrosion fatigue resistance was evaluated. The project also determined the fatigue damage ratio (the ratio of the fatigue life in a NaCl solution to the fatigue life in air) by comparing the S-N curves measured in NaCl and in air for 5083-H111 aluminium in the as-supplied and as-welded conditions.