Optimisation of Weld Overlay for Productivity and Corrosion Resistance
Status: Completed
Date Announced: September, 2010
Project reference: 21450
Quantify the capabilities of new generation arc welding process variants for weld overlaying. Identify the effect of varying dilution on corrosion and corrosion fatigue performance for a range of representative environments including severe sour service. This involves: - Quantifying the effect of process variables on dilution in weld overlay produced using commonly used weld overlaying process/techniques and advanced welding techniques with regard to productivity. - Investigation into the local variations in dilution on corrosion resistance for a range of corrosion resistant alloys (CRAs) including 316L and 904L stainless steel, alloy 625, alloy 825, and Monel alloys. - Quantify the correlation between the dilution and corrosion and corrosion fatigue resistance in a range of mild and aggressive environments, including severe sour service. - Investigate the suitability of some of the current NDT methods to ensure the integrity and uniformity of the weld overlay