Self lubricating composite coatings containing TiC-MnS or WC-MnS compounds prepared by the plasma transferred arc (PTA) technique

Skarvelis, P; Papadimitriou, GD; Perraki, M

dc.contributor.author	Skarvelis, P	en
dc.contributor.author	Papadimitriou, GD	en
dc.contributor.author	Perraki, M	en
dc.date.accessioned	2014-03-01T01:34:35Z
dc.date.available	2014-03-01T01:34:35Z
dc.date.issued	2010	en
dc.identifier.issn	0742-4787	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20755
dc.subject	Manganese sulphide (MnS)	en
dc.subject	Plasma transferred arc (PTA)	en
dc.subject	Self lubricating coating	en
dc.subject	Titanium carbide (TiC)	en
dc.subject	Tungsten carbide (WC)	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Carbide particles	en
dc.subject.other	Combined actions	en
dc.subject.other	Ferritic matrix	en
dc.subject.other	Friction coefficients	en
dc.subject.other	Manganese sulphide	en
dc.subject.other	Orders of magnitude	en
dc.subject.other	Pin on disk	en
dc.subject.other	Plain steels	en
dc.subject.other	Plasma transferred arc	en
dc.subject.other	Self lubricating coating	en
dc.subject.other	Self-lubricating properties	en
dc.subject.other	Substrate material	en
dc.subject.other	Thin layers	en
dc.subject.other	Tribological properties	en
dc.subject.other	Visual defects	en
dc.subject.other	Wear rates	en
dc.subject.other	Wear regimes	en
dc.subject.other	Wear tracks	en
dc.subject.other	Composite coatings	en
dc.subject.other	Friction	en
dc.subject.other	Hard coatings	en
dc.subject.other	Hard facing	en
dc.subject.other	Lubrication	en
dc.subject.other	Manganese	en
dc.subject.other	Plasma torches	en
dc.subject.other	Plasma welding	en
dc.subject.other	Plasmas	en
dc.subject.other	Self lubricating composites	en
dc.subject.other	Titanium	en
dc.subject.other	Titanium carbide	en
dc.subject.other	Tungsten	en
dc.subject.other	Tungsten carbide	en
dc.title	Self lubricating composite coatings containing TiC-MnS or WC-MnS compounds prepared by the plasma transferred arc (PTA) technique	en
heal.type	journalArticle	en
heal.identifier.primary	10.1115/1.4001649	en
heal.identifier.secondary	http://dx.doi.org/10.1115/1.4001649	en
heal.identifier.secondary	031302	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Composite coatings containing manganese sulphide as lubricating addition and enhanced with hard carbide particles (TiC, WC) were synthesized on a plain steel substrate using the plasma transferred arc technique. The coatings are well bonded to the substrate, have a thickness of about 1 mm, and are free of any visual defects. They consist mainly of a martensitic or ferritic matrix enhanced with titanium or tungsten carbides and a dispersion of MnS particles. The tribological properties of the composites are assessed using a pin-on-disk device. Both composites possess self lubricating properties, due to the formation of a thin layer of manganese sulphide on their wear tracks. The corresponding friction coefficients vary between 0.25 and 0.28, compared with 0.50-0.60 obtained from similar hard coatings without MnS addition. The wear rates are of the order of 10(-5) mm(3)/m N and are two orders of magnitude lower than those obtained from the substrate material with MnS addition, but without the presence of hard enhancing particles. The wear regime is mild abrasion due to the combined action of both lubricating (MnS) and hard (TiC or WC) particles. [DOI: 10.1115/1.4001649]	en
heal.publisher	ASME-AMER SOC MECHANICAL ENG	en
heal.journalName	Journal of Tribology	en
dc.identifier.doi	10.1115/1.4001649	en
dc.identifier.isi	ISI:000280205300004	en
dc.identifier.volume	132	en
dc.identifier.issue	3	en
dc.identifier.spage	1	en
dc.identifier.epage	8	en