Cavitation erosion resistance of deposits processed by plasma transferred arc weldingArticle based on a version presented at the XXXI CONSOLDA, São Paulo, Nov 29–Dec 1 2005.

Effect of Nitrogen Ion Implantation on the Cavitation Erosion Resistance and Cobalt-Based Solid Solution Phase Transformations of HIPed Stellite 6

“…Cobalt based materials are among the most cavitation erosion-resistant materials commercially available and chemical composition of Stellite 6 alloy exhibits excellent cavitation erosion (CE) resistance. Therefore, Stellite 6 superior CE behaviour is documented by many scientific papers, for the stellites produced as alloy weld overlays [17], plasma transferred arc (PTA) overlay welding [18], laser cladding [11], shielded metal arc welding (SMAW) [19] and also HVOF deposited Stellite 6 coatings [20] and cobalt-based WC-Co cermet's deposits [21][22][23]. Unfortunately, as far as the authors' knowledge no paper described cavitation properties of the powder metallurgy satellites and analysed the cavitation wear behaviour of HIPed Stellite 6.…”

Effect of Nitrogen Ion Implantation on the Cavitation Erosion Resistance and Cobalt-Based Solid Solution Phase Transformations of HIPed Stellite 6

“…Cobalt based materials are among the most cavitation erosion-resistant materials commercially available and chemical composition of Stellite 6 alloy exhibits excellent cavitation erosion (CE) resistance. Therefore, Stellite 6 superior CE behaviour is documented by many scientific papers, for the stellites produced as alloy weld overlays [17], plasma transferred arc (PTA) overlay welding [18], laser cladding [11], shielded metal arc welding (SMAW) [19] and also HVOF deposited Stellite 6 coatings [20] and cobalt-based WC-Co cermet's deposits [21][22][23]. Unfortunately, as far as the authors' knowledge no paper describes cavitation properties of the powder metallurgy satellites and analysis its cavitation wear behaviour of HIPed Stellite 6.…”

Effect of current and atomized grain size distribution on the solidification of Plasma Transferred Arc coatings

“…The latter has been explained when comparing coatings processed with other hardfacing processes due to the faster solidification rates imposed by PTA and therefore finer microstructures formed due to a faster growth rate [1][2][3][4] . However, a more accurate correlation had to involve deposition procedures with similar heat input as suggested in a previous work on the characterization of PTA coatings processed with a wire and an atomized feedstock alloy 5,6 . The microstructures as observed in the transverse section of coatings exhibited similar characteristics with a planar region near the fusion line followed by a columnar and a dendritic structure but a finer structure formed in the coatings processed with the atomized alloy.…”