A study on the surface treatment of ""Calmax"" tool steel by a plasma transferred arc (PTA) process

Bourithis, E; Tazedakis, A; Papadimitriou, G

dc.contributor.author	Bourithis, E	en
dc.contributor.author	Tazedakis, A	en
dc.contributor.author	Papadimitriou, G	en
dc.date.accessioned	2014-03-01T01:17:24Z
dc.date.available	2014-03-01T01:17:24Z
dc.date.issued	2002	en
dc.identifier.issn	0924-0136	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14509
dc.subject	PTA	en
dc.subject	Surfacing	en
dc.subject	Tool steel	en
dc.subject.classification	Engineering, Industrial	en
dc.subject.classification	Engineering, Manufacturing	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Hardness	en
dc.subject.other	Heat treatment	en
dc.subject.other	Martensite	en
dc.subject.other	Metallographic microstructure	en
dc.subject.other	Plasma arc melting	en
dc.subject.other	Surface roughness	en
dc.subject.other	Surface treatment	en
dc.subject.other	Plasma transferred arc (PTA) process	en
dc.subject.other	Tool steel	en
dc.title	A study on the surface treatment of ""Calmax"" tool steel by a plasma transferred arc (PTA) process	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0924-0136(02)00447-8	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0924-0136(02)00447-8	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	A tool steel (Calmax of Uddeholm) was subjected to surface melting using the plasma transferred arc (PTA) process. Single and multiple run melting was used under different working conditions and the geometric characteristics of melted and heat affected zones were studied as a function of working parameters, current, travel speed and gas flow rate. The parameters were adjusted in order to obtain hard layers with sufficient thickness, presenting at the same time low roughness and crack free surfaces. The same steel was subjected to a conventional heat treatment (quenching and tempering) for comparison. The PTA surface treated specimens showed fine martensitic microstructures in depth going up to 1.5E-3 m. Their hardness was higher than the one of the conventionally heat treated steel. Pin on disk wear testing showed that PTA treated specimens have much better wear resistance, attributed mainly to the fine microstructure. (C) 2002 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Journal of Materials Processing Technology	en
dc.identifier.doi	10.1016/S0924-0136(02)00447-8	en
dc.identifier.isi	ISI:000178711000021	en
dc.identifier.volume	128	en
dc.identifier.issue	1-3	en
dc.identifier.spage	169	en
dc.identifier.epage	177	en