What is it about?
The focus of this paper was on the possibility of using Cr3C2-20Ni cermet, produced by mechanically activated synthesis (MAS), as a reinforcement in plasma transferred arc welded (PTAW) and submerged arc welded (SAW) composite hardfacings, based on Ni-based self-fluxing alloy (NiCrSiB) or stainless steel (AISI 316L). More specifically, microstructure, Vickers hardness and wear resistance in abrasive conditions of the hardfacings with and without reinforcements were compared.
Why is it important?
This study showed that PTAW technology is more suitable for getting hardfacings with Cr3C2-Ni reinforcement, than SAW, because all the Cr3C2-Ni reinforcement dissolved in the molten matrix during welding due to a higher process temperature. It was also demonstrated that despite a higher rate of dissolution of Cr3C2-Ni reinforcement in the stainless steel matrix to be compared with the Ni-based self-fluxing alloy, the wear resistance was a bit better in the case of hardfacings with the stainless steel matrix.
Read the Original
This page is a summary of: Study of submerged and plasma arc welded composite hardfacings with a novel Cr3C2–Ni reinforcement, Proceedings of the Estonian Academy of Sciences, January 2019, Estonian Academy Publishers,
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