LASER-MELTING TREATMENT OF THICK CHROMIUM ELECTRODEPOSITS ON BRASS SUBSTRATE

PSYLLAKI, P; POLYMENIS, S; CHRYSSOULAKIS, Y; PANTELIS, D

dc.contributor.author	PSYLLAKI, P	en
dc.contributor.author	POLYMENIS, S	en
dc.contributor.author	CHRYSSOULAKIS, Y	en
dc.contributor.author	PANTELIS, D	en
dc.date.accessioned	2014-03-01T01:42:06Z
dc.date.available	2014-03-01T01:42:06Z
dc.date.issued	1993	en
dc.identifier.issn	0360-3164	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23708
dc.subject.classification	Metallurgy & Metallurgical Engineering	en
dc.subject.classification	Materials Science, Coatings & Films	en
dc.title	LASER-MELTING TREATMENT OF THICK CHROMIUM ELECTRODEPOSITS ON BRASS SUBSTRATE	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	The effects of high-power laser treatment on thickly chromium-coated brass were studied. Microstructure observations, energy dispersive spectrometry (EDS), X-ray diffraction (XRD) analysis and microhardness measurements were carried out. During laser-melting treatment, part of the electrodeposited chromium always evaporated, so that the laser beam incised grooves on the metallic surface, under which two distinct zones were obtained-the laser melted zone (LMZ) and the heat affected zone (HAZ). The upper area of the LMZ consisted mainly of chromium and displayed about the same microhardness as the laser-softened electrodeposited chromium, while in the lower one CuZn, CuZn5, Al8Cr5 phases and unalloyed chromium were identified. This area showed the highest microhardness-about 1.5 times that of the substrate. The HAZ displayed the same composition and microhardness as the substrate.	en
heal.publisher	AMER ELECTROPLATERS SOC INC	en
heal.journalName	PLATING AND SURFACE FINISHING	en
dc.identifier.isi	ISI:A1993KG72400011	en
dc.identifier.volume	80	en
dc.identifier.issue	1	en
dc.identifier.spage	57	en
dc.identifier.epage	61	en