Deposition and characterization of WC-Co hard-metal coatings by high velocity oxy-fuel process combined with dry-ice blasting
Source abstract
Abstract
Abstract The residual stresses arising during high velocity oxy-fuel (HVOF) process usually restrict the building up of thick coatings. The potential of in-situ dry-ice blasting treatment during HVOF process to deposit thick WC-Co coatings with high quality due to its efficient cooling and mechanical peening was investigated in the present work. Characterization of WC–Co coatings deposited by HVOF combined with dry-ice blasting was carried out and compared with that of the coatings prepared using conventional HVOF. Several techniques, including scanning electron microscopy, X-ray diffraction and energy dispersive spectroscopy, were used to characterize the microstructures and phase distribution of the powders and coatings. In addition, mechanical properties such as hardness and sliding wear resistance were evaluated. The results demonstrate that HVOF-sprayed WC-Co coating with dry-ice blasting is characterized by compact construction, grain refinement as well as high hardness. Different from the prevention phenomenon of decarburization observed for plasma spraying of austenitic steel, WC decarburization still occurs for HVOF-sprayed WC-Co coating with dry-ice blasting. The in-situ dry-ice blasting treatment results in minute improvement in wear resistance of WC-Co coatings.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Abrasive wear behaviour of conventional and nanocomposite HVOF-sprayed WC-Co coatings
2. Wood. Tribology of thermal sprayed WC-Co coatings10.1016/j.ijrmhm.2009.07.011 ↗
3. Formation of splats during thermal spraying of composite powder particles10.1016/S0167-577X(99)00157-3 ↗
4. Characterization and residual stresses of WC–Co thermally sprayed coatings10.1016/j.surfcoat.2008.04.042 ↗
5. Effect of carbide grain size on microstructure and sliding wear behavior of HVOF-sprayed WC–12% Co coatings10.1016/S0043-1648(02)00294-6 ↗
6. Influence of HVOF parameters on the corrosion and wear resistance of WC-Co coatings sprayed on AA7050 T710.1016/j.surfcoat.2008.04.055 ↗
7. Influence of coating microstructure on the abrasive wear resistance of WC/Co cermet coatings10.1016/S0257-8972(99)00653-2 ↗
8. Powder/processing/structure relationships in WC-Co thermal spray coatings: a review of the published literature10.1361/105996398770350846 ↗
9. Microstructure and wear resistance of WC-Co by three consolidation processing techniques10.1016/j.ijrmhm.2008.07.002 ↗
10. Determination of residual stress distribution from in situ curvature measurements for thermally sprayed WC/Co coatings10.1007/s11666-997-0018-4 ↗
11. Kwang Ho Kim. Influence of residual stress on the adhesive behavior of detonation gun sprayed WCeCo coatings10.1016/j.cap.2012.02.019 ↗
12. Residual stress in HVOF thermally sprayed thick deposits10.1016/j.surfcoat.2003.06.003 ↗
13. Improvement in the microstructure and property of plasma sprayed metallic, alloy and ceramic coatings by pre-/during-treatment of dry-ice blasting10.1016/j.surfcoat.2012.03.071 ↗
14. Microstructure and properties of Cr2O3 coating deposited by plasma spraying and dry-ice blasting10.1016/j.surfcoat.2013.03.016 ↗
15. Fabrication of FeSiB magnetic coatings with improved saturation magnetization by plasma spray and dry-ice blasting10.1016/j.jallcom.2013.09.038 ↗
16. Modeling and control of HVOF thermal spray processing of WC-Co coatings10.1016/j.powtec.2005.04.011 ↗
17. HVOF sprayed WC-Co coatings: Microstructure, mechanical properties and friction moment prediction10.1016/j.matdes.2009.08.037 ↗
18. Study of HVOF spraying of WC-CoCr using on-line particle monitoring10.1016/j.surfcoat.2003.12.024 ↗
19. Multi-scale modeling and analysis of an industrial HVOF thermal spray process10.1016/j.ces.2005.02.043 ↗
20. Effects of carbide size and Co content on the microstructure and mechanical properties of HVOF-sprayed WC-Co coatings10.1016/j.surfcoat.2007.06.026 ↗
21. Assessment of microstructural and mechanical properties of HVOF sprayed WC-based cermet coatings for a roller cylinder10.1016/j.surfcoat.2005.02.158 ↗
22. The effects of fuel chemistry and feedstock powder structure on the mechanical and tribological properties of HVOF thermal-sprayed WC–Co coatings with very fine structures10.1016/S0257-8972(03)00242-1 ↗
23. Suppression effect of decarburization by dry-ice blasting on plasma-sprayed steel coatings: structure, wear performance and magnetic properties10.1016/j.surfcoat.2014.05.012 ↗
24. A comparison between the corrosion resistances of some HVOF-sprayed metal alloy coatings10.1016/j.surfcoat.2008.04.056 ↗
25. Wear behaviour of thermally sprayed ceramic oxide coatings10.1016/j.wear.2006.03.023 ↗
26. Corrosion resistance of HVOF-sprayed coatings for hard chrome replacement10.1016/j.corsci.2006.03.001 ↗
27. Phase structure-mechanical property relationships in HVOF-sprayed WC-12Co coatings
28. Effect of carbide grain size on the sliding and abrasive wear behavior of thermally sprayed WC-Co coatings10.1080/10402009708983682 ↗
29. Effects of carbide size and Co content on the microstructure and mechanical properties of HVOF-sprayed WC–Co coatings10.1016/j.surfcoat.2007.06.026 ↗
30. Study by X-ray diffraction and mechanical analysis of the residual stress generation during thermal spraying10.1016/S0921-5093(02)00580-4 ↗
31. Effects of structure and processing technique on the properties of thermal spray WC-Co and NiCrAl/WC-Co coatings10.1016/j.msea.2003.11.045 ↗
32. Effect of grinding on the erosion behaviour of a WC-Co-Cr coating deposited by HVOF and detonation gun spray processes10.1016/S0043-1648(01)00682-2 ↗
33. Methods and application of residual stress analysis on thermally sprayed coatings and layer composites10.1016/j.surfcoat.2006.04.040 ↗