Investigation of Sliding Wear Behaviour of HVOF Carbide Coating. (2018)

• Record Type: Journal Article
• Authors: Kishore Mishra, Tribhuwan; Kumar, Arbind; Sinha, SK; Sharma, Satpal
• Is Part Of: Materials today. Volume 5:Number 9(2018)Part 3
• Page Start: 19539
• Page End: 19546
• Publication Date: 2018
• Subjects: Sliding wear -- tungsten Carbide (WC) -- Cobalt (Co) -- Sliding Wear -- HVOF Coating -- SEM analysis; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2018.06.315
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: In this Present work dry sliding wear tests on specimens of Mild Steel, WC-12Co and WC-10Co-4Cr coated specimens were performed against a hardened EN32 steel disc under dry sliding conditions. High Velocity Oxy-Fuel flame spraying technique (HVOF) was used to deposit the coating on 1020 grade steel then theses coated sample characterized using scanning electron microscopy, X-ray diffraction (XRD), coefficient of friction (COF), hardness The experiment result show MS specimen suffered high wear loss, but the WC-Co and WC-Co-Cr specimen showed negative wear and higher friction coefficient .Hardness is higher in the WC-12Co coating than in the WC-10Co-4Cr coating. The SEM image shows the bright and dark grey regions corresponding to tungsten carbide and cobalt binder phase XRD result shows that decomposition of WC (into W2 C and W) cases lower wear