Matches in SemOpenAlex for { <https://semopenalex.org/work/W2048463835> ?p ?o ?g. }
- W2048463835 endingPage "94" @default.
- W2048463835 startingPage "82" @default.
- W2048463835 abstract "This paper looks at the tribology of thermal sprayed WC–Co based coatings and covers the high energy air–sand erosion resistance and slurry jet impingement erosion performance, dry and wet sliding tribology of thermal spray WC–Co based coatings as well as the abrasion and abrasion–corrosion of these coatings. The tribological and tribo-corrosion performance of the coatings will be related to their mechanical and corrosion properties as well as deposition parameters, microstructure and actual composition. For example, the anisotropic microstructure of thermally sprayed WC–Co–Cr coatings, in particular the low fracture toughness in a direction parallel to the substrate, has been observed to affect the nature of crack formation under 200 μJ air–solid particle erosion conditions. Voids and occasionally other microstructural features (i.e., cobalt lakes, splat boundaries, interfacial inclusions) in the coating act as crack initiation sites. The erosion rate was dominated by cracks within 5 μm of the surface and was relatively insensitive to total length of cracks, showing a near-surface damage front controls the erosion rate and this region is coincident with the region of maximum shear stress induced by erodent impacts. Optimisation of the deposition parameters of HVOF 86WC–10Co–4Cr coatings show an improvement in erosion resistance of more than 50% over the conventional D-gun applied coating of identical nominal composition. The variation in the slurry erosion performance of the thermally sprayed coatings is also linked to directional fracture toughness and crack propagation paths which are influenced by the presence of pores, inhomogeneous carbide distributions and substrate grit blast remnants. The influence of slurry jet angle is more pronounced under 0.4 μJ energy conditions where maximum erosion occurred at 90° and the minimum at 30° in contrast to 7 μJ slurry erosion rates which were independent of jet angle. This reflects the lower levels of fluctuating stresses imparted to the coating during low energy slurry impacts leading to the impact angle having a greater effect on sub critical crack growth rate than for higher energy conditions. The abrasion resistance of these coatings was found comparable to sintered cermets of the same composition. The synergistic effects between micro and macro abrasion and corrosion for detonation gun (D-gun) sprayed WC–10Co–4Cr coatings are shown to be significant and depend on the environment. The size effect of the abradant relative to the microstructure and splat size is important as well as the propensity for the various phases to passivate to control corrosion levels. Comparisons between exposed and freshly polished coating surfaces in strong NaOH solutions (pH 11) show that significantly lower wear rates were seen for the exposed surface due to a negative wear–corrosion synergy due to selective phase removal and the effects of localised passivation. Dry and wet sliding wear resistance of these coatings is shown to be high (wear rates of 10−16–10−18 m3/Nm) with modest coefficient of friction levels between 0.2 and 0.5. The presence of oxides on the binder phases appears to influence the friction and wear levels. Wear appears to be by carbide ejection and/or by tribo-chemical processes." @default.
- W2048463835 created "2016-06-24" @default.
- W2048463835 creator A5081955081 @default.
- W2048463835 date "2010-01-01" @default.
- W2048463835 modified "2023-10-17" @default.
- W2048463835 title "Tribology of thermal sprayed WC–Co coatings" @default.
- W2048463835 cites W1510805648 @default.
- W2048463835 cites W1966342875 @default.
- W2048463835 cites W1967103579 @default.
- W2048463835 cites W1979386309 @default.
- W2048463835 cites W1984318378 @default.
- W2048463835 cites W1985198049 @default.
- W2048463835 cites W1991560525 @default.
- W2048463835 cites W1999386363 @default.
- W2048463835 cites W2005133128 @default.
- W2048463835 cites W2007605506 @default.
- W2048463835 cites W2018904720 @default.
- W2048463835 cites W2024214371 @default.
- W2048463835 cites W2026055056 @default.
- W2048463835 cites W2031038332 @default.
- W2048463835 cites W2042956797 @default.
- W2048463835 cites W2043789471 @default.
- W2048463835 cites W2060906270 @default.
- W2048463835 cites W2062270948 @default.
- W2048463835 cites W2068670829 @default.
- W2048463835 cites W2073314346 @default.
- W2048463835 cites W2074351621 @default.
- W2048463835 cites W2082130828 @default.
- W2048463835 cites W2083754614 @default.
- W2048463835 cites W2086232512 @default.
- W2048463835 cites W2086979840 @default.
- W2048463835 cites W2088174161 @default.
- W2048463835 cites W2088740042 @default.
- W2048463835 cites W2089559700 @default.
- W2048463835 cites W2092212016 @default.
- W2048463835 cites W2094866520 @default.
- W2048463835 cites W2122866066 @default.
- W2048463835 cites W2140594505 @default.
- W2048463835 cites W2141592922 @default.
- W2048463835 cites W4312882771 @default.
- W2048463835 doi "https://doi.org/10.1016/j.ijrmhm.2009.07.011" @default.
- W2048463835 hasPublicationYear "2010" @default.
- W2048463835 type Work @default.
- W2048463835 sameAs 2048463835 @default.
- W2048463835 citedByCount "151" @default.
- W2048463835 countsByYear W20484638352012 @default.
- W2048463835 countsByYear W20484638352013 @default.
- W2048463835 countsByYear W20484638352014 @default.
- W2048463835 countsByYear W20484638352015 @default.
- W2048463835 countsByYear W20484638352016 @default.
- W2048463835 countsByYear W20484638352017 @default.
- W2048463835 countsByYear W20484638352018 @default.
- W2048463835 countsByYear W20484638352019 @default.
- W2048463835 countsByYear W20484638352020 @default.
- W2048463835 countsByYear W20484638352021 @default.
- W2048463835 countsByYear W20484638352022 @default.
- W2048463835 countsByYear W20484638352023 @default.
- W2048463835 crossrefType "journal-article" @default.
- W2048463835 hasAuthorship W2048463835A5081955081 @default.
- W2048463835 hasConcept C118231568 @default.
- W2048463835 hasConcept C123157820 @default.
- W2048463835 hasConcept C149669645 @default.
- W2048463835 hasConcept C151730666 @default.
- W2048463835 hasConcept C159985019 @default.
- W2048463835 hasConcept C167310744 @default.
- W2048463835 hasConcept C191897082 @default.
- W2048463835 hasConcept C192562407 @default.
- W2048463835 hasConcept C20625102 @default.
- W2048463835 hasConcept C2781448156 @default.
- W2048463835 hasConcept C59085676 @default.
- W2048463835 hasConcept C86803240 @default.
- W2048463835 hasConcept C87976508 @default.
- W2048463835 hasConcept C94293008 @default.
- W2048463835 hasConcept C97549433 @default.
- W2048463835 hasConcept C99595764 @default.
- W2048463835 hasConceptScore W2048463835C118231568 @default.
- W2048463835 hasConceptScore W2048463835C123157820 @default.
- W2048463835 hasConceptScore W2048463835C149669645 @default.
- W2048463835 hasConceptScore W2048463835C151730666 @default.
- W2048463835 hasConceptScore W2048463835C159985019 @default.
- W2048463835 hasConceptScore W2048463835C167310744 @default.
- W2048463835 hasConceptScore W2048463835C191897082 @default.
- W2048463835 hasConceptScore W2048463835C192562407 @default.
- W2048463835 hasConceptScore W2048463835C20625102 @default.
- W2048463835 hasConceptScore W2048463835C2781448156 @default.
- W2048463835 hasConceptScore W2048463835C59085676 @default.
- W2048463835 hasConceptScore W2048463835C86803240 @default.
- W2048463835 hasConceptScore W2048463835C87976508 @default.
- W2048463835 hasConceptScore W2048463835C94293008 @default.
- W2048463835 hasConceptScore W2048463835C97549433 @default.
- W2048463835 hasConceptScore W2048463835C99595764 @default.
- W2048463835 hasIssue "1" @default.
- W2048463835 hasLocation W20484638351 @default.
- W2048463835 hasOpenAccess W2048463835 @default.
- W2048463835 hasPrimaryLocation W20484638351 @default.
- W2048463835 hasRelatedWork W1996047188 @default.
- W2048463835 hasRelatedWork W2006511274 @default.
- W2048463835 hasRelatedWork W2033429137 @default.