Passivation behavior and surface chemistry of 2507 super duplex stainless steel in artificial seawater: Influence of dissolved oxygen and pH

Study of the characteristics of duplex stainless steel activated tungsten inert gas welds

Nitrogen loss and effects on microstructure in multipass TIG welding of a super duplex stainless steel

Erosion–corrosion behaviour of lean duplex stainless steels in 3.5% NaCl solution

The effects of input heat of different welding processes on the microstructure, corrosion, and mechanical characteristics of welded duplex stainless steel (DSS) are reviewed. Austenitic stainless steel (ASS) is welded using low-heat inputs. However, owing to differences in the physical metallurgy between ASS and DSS, low-heat inputs should be avoided for DSS. This review highlights the differences in solidification mode and transformation characteristics between ASS and DSS with regard to the heat input in welding processes. Specifically, many studies about the effects of heat energy input in welding process on the pitting corrosion, intergranular stress, stresscorrosion cracking, and mechanical properties of weldments of DSS are reviewed.

Iris Alvarez-Armas

Papers

Duplex Stainless Steels: Brief History and Some Recent Alloys