Weldability of iron-based powder metal materials using pulsed plasma arc welding process

Studies on weldability of iron-based powder metal alloys using pulsed gas tungsten arc welding process

“…However, phosphorus additions are not particularly attractive for fusion welding applications because its presence in the metal base composition may promote solidification cracking. Therefore, the amount of phosphorus added in the alloy must be rigorously controlled (Correa et al, 2008). Fig.…”

“…Recently, authors (Correa et al, 2008) have experimentally shown the feasibility of welding of Fe-Ni and Fe-Ni-P P/Mbased alloys with a pulsed plasma arc welding process without filler metal. Among several factors influencing the weldability of this kind of alloys, authors outlined that a careful control of the heat input is required to avoid a higher dilution of base metal and, consequently, the occurrence of solidification cracks.…”

Effect of deposition strategy on the microstructure and mechanical properties of Inconel 625 superalloy fabricated by pulsed plasma arc deposition

“…This enables itself as a good choice for fabricating near net shape components. In addition, the use of pulsed current on conventional mode has been associated with a finer structure due to an increase of the melt pool agitation [2]. Hence, the process is ideally suited for high volume manufacturing, particularly for fabrication and repair of a variety of medium to large sized and highly complex components.…”

Weldability of Iron Based Powder Metal Alloys Using Pulsed GTAW Process

“…However, phosphorus additions are not particularly attractive for fusion welding applications because its presence in the metal base composition is associated with the formation of the eutectic M 3 P, which may promote solidification cracking in the fusion zone. Therefore, the amount of phosphorus added in the alloy must be rigorously controlled (Correa et al, 2008). www.intechopen.com b. Powder metal Fe-Ni-P According to author (Beiss, 1989), PM carbon steels with additions of 0,35% P may be fusion successfully welded without the occurrence of solidification cracks since the carbon content is lower than 0,2%.…”