期刊
TRIBOLOGY INTERNATIONAL
卷 119, 期 -, 页码 491-509出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2017.10.006
关键词
Ceramic; Thermally-sprayed coating; Synergism; Numerical analysis
资金
- Schlumberger
- EPSRC Green Tribology grant [EP/J001023/1]
- University of Southampton
- Engineering and Physical Sciences Research Council [EP/F034296/1, 1361767, EP/J001023/1] Funding Source: researchfish
- EPSRC [EP/F034296/1, EP/J001023/1] Funding Source: UKRI
Cemented and thermal sprayed tungsten carbide are extensively used in a wide range of applications, ranging from downhole drilling tools and oil and gas valves to gas turbine engines. These WC based systems offer improved wear resistance as a result of hard ceramic phases surrounded by a metallic binder matrix. However, the presence of hard and soft phases within these materials also leads to differing wear mechanisms and the formation of micro-galvanic couplings in aqueous environments often result in a reduction in combined wear-corrosion resistance. This paper examines the wear-corrosion performance of these WC based systems in a range of wear, electrochemical and wear-corrosion tests to develop models and establish relationships between wear mechanisms and environmental factors such as pH.
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