Welding of stainless‐duplex steels. Properties of welded joints

Weldability, machinability and surfacing of commercial duplex stainless steel AISI2205 for marine applications – A recent review

“…DSS weld made by GTAW absorbed a higher amount of energy than GMAW. The presence of secondary austenite is high in the weldment of GMAW leads to the reduction in the impact strength [75] . Some of the studies highlighted that the impact toughness of the DSS weld was lesser than the parent metal due to the improper partitioning of alloying elements during weld solidification.…”

“…Use of nickel enriched filler ER 2209 imposes the weld to achieve the strength of the DSS parent metal and drives the weld to maintain its ductility. Also, the fractured location outside the weld reveals the tensile strength of the DSS weld [75] . Formability of DSS weld shows no cracks in the bent specimens which confirms the ductility of the weldment as shown in Fig.…”

Evaluation of Creep Strength of Heterogeneous Welded Joint in HR6W Alloy and Sanicro 25 Steel

“…The electricity generation in Poland is still based on coal and lignite, and their considerable resources are the primary source of energy [1,2]. However, it is associated with adverse emission of significant pollutants into the atmosphere as carbon dioxide (CO 2 ), sulphur dioxide (SO 2 ), nitrogen oxide (NO x ) and different types of dusts.…”

Influence of the Annealing Time After Welding on the Mechanical Properties of Welded Joint of T91 Steel

“…Previous publications, inter alia [1,3,6,8,11,12], mostly cover homogeneous and heterogeneous pipe joints with T91 steel, particularly the thick-walled ones whose weld thermal cycles significantly differ from those used during the welding of pipes of small diameters and thickness of walls. It is significant because the extent to which the conditions of welding determine the changes in the joints morphology, including the precipitation processes, and in consequence obtaining different mechanical properties of joints (including impact energy), is greater than in the case of heat treatment [6,8,9].…”

“…Modern steels for work at elevated temperature, called creep-resisting steels of new generation, as well as the nickelbased alloys -of the Inconel type enable constructing power units of supercritical and ultra-supercritical parameters of steam, but also they are used when performing the modernization works on pressure elements of power units of subcritical parameters, serviced so far [1,2]. These installations enable not only a considerable growth of the thermal efficiency of power units, but also, combined with other appliances, a radical reduction of the emission of CO 2 , SO 2 , NO X [3].…”