Tribological behavior and wear mechanism of pure WC at wide range temperature from 25 to 800 °C in vacuum and air environment
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Abstract
Abstract The tribological behavior and wear mechanism of pure tungsten carbide (WC) is researched in this study. In order to simulate the actual work condition, the experimental temperature increases from room temperature to 800 °C under air and vacuum conditions, respectively. XRD, SEM and Raman laser surface scattering tests are used to investigate the worn surfaces of WC after different sliding friction tests. In this study, it is found that the atmosphere has a significant influence on the tribological properties of pure WC. In vacuum, pure WC can maintain phase stability at the temperature till to 800 °C. However, the oxidation behavior have a significant effect on the tribological properties of tungsten carbide under air environment and the critical oxidizing temperature is between 500 °C and 550 °C.
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1. The history of the technological progress of hardmetals10.1016/j.ijrmhm.2014.04.016 ↗
2. Application of hardmetals as thermal spray coatings10.1016/j.ijrmhm.2014.09.029 ↗
3. 2014
4. Modern coatings in high performance cutting applications10.1016/j.ijrmhm.2005.11.005 ↗
5. Microstructural analysis of wear micromechanisms of WC-6Co cutting tools during high speed dry machining10.1016/j.ijrmhm.2013.08.017 ↗
6. Oxidation-induced strenghth degradation of WC-Co hardmetals10.1016/S0263-4368(01)00033-6 ↗
7. Oxidation of tungsten and tungsten carbide in dry and humid atmospheres10.1016/S0263-4368(96)00027-3 ↗
8. Oxidation of tungsten carbide powders in air10.1016/j.ijrmhm.2013.05.001 ↗
9. High-temperature wear of cemented tungsten carbide tools while machining particleboard and fiberboard10.1007/BF00538952 ↗
10. Synthesis, sintering, and mechanical properties of nanocrystalline cemented tungsten carbide - a review10.1016/j.ijrmhm.2008.07.011 ↗
11. Grain growth during the early stage of sintering of nanosized WC-Co powder10.1016/j.ijrmhm.2007.04.006 ↗
12. Liquid phase sintering of functional graded WC-Co composites10.1016/j.scriptamat.2004.12.008 ↗
13. Correlation of transverse rupture strength of WC-Co with hardness10.1016/j.ijrmhm.2004.11.005 ↗
14. Spark plasma sintering of WC, cemented carbide and functional graded materials10.1016/j.ijrmhm.2012.03.007 ↗
15. Kinetics inversion in isothermal oxidation of uncoated WC-based carbides between 450 and 800°C10.1016/j.corsci.2008.12.022 ↗
16. Comparison of the oxidation behaviour of WC-Co and WC-Ni-Co-Cr cemented carbides10.1016/j.corsci.2011.05.006 ↗
17. Liquid phase sintering and oxidation resistance of WC-Ni-Co-Cr cemented carbides10.1016/j.ijrmhm.2010.02.010 ↗
18. Oxidation behavior of WC-Co10.1016/0921-5093(95)10145-4 ↗
19. Effect of co content and WC grain size on wear of WC cemented carbide10.1016/j.wear.2005.09.034 ↗
20. Kinetics of WC-Co oxidation accompanied by swelling10.1007/BF00351615 ↗
21. Oxidation-induced strength degradation of WC–Co hardmetals10.1016/S0263-4368(01)00033-6 ↗
22. Oxidation of WC-Co, WC-Ni and WC-Co-Ni hard metals in the temperature range 500–800°C10.1016/0263-4368(96)00009-1 ↗
23. Indentation fracture of WC-Co Cermets10.1007/BF00555296 ↗
24. Friction and wear behavior of nickel-alloy-based high temperature self-lubricating composites against Si3N4 and Inconel 71810.1016/j.triboint.2014.03.005 ↗
25. Relative Raman cross-section of tungsten oxides: [WO3, Al2(WO4)3, and WO3/Al2O3]10.1016/0021-9517(84)90096-4 ↗
26. Structure of surface tungsten oxide species in the WO3/Al2O3 supported oxide system from X-ray absorption near-edge spectroscopy and Raman spectroscopy10.1021/j100299a018 ↗
27. Investigation of nonstoichiometric tungsten oxide nanoparticles10.1006/jssc.2001.9319 ↗