Non-destructive surface analysis of accelerated corroded copper alloys

Papandreopoulos, P; Koui, M; Yfantis, D; Theophanides, T

dc.contributor.author	Papandreopoulos, P	en
dc.contributor.author	Koui, M	en
dc.contributor.author	Yfantis, D	en
dc.contributor.author	Theophanides, T	en
dc.date.accessioned	2014-03-01T02:11:31Z
dc.date.available	2014-03-01T02:11:31Z
dc.date.issued	2012	en
dc.identifier.issn	00035599	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29930
dc.subject	Alloys	en
dc.subject	Artefacts	en
dc.subject	Copper alloys	en
dc.subject	Corrosion	en
dc.subject	Corrosion in soil	en
dc.subject	Scanning electron microscopy with energy dispersive X-Ray micro-detector	en
dc.subject	X-Ray fluorescence spectroscopy	en
dc.subject.other	Alloy concentration	en
dc.subject.other	Alloying metals	en
dc.subject.other	Artefacts	en
dc.subject.other	Atomic absorption spectroscopy	en
dc.subject.other	Buffering solution	en
dc.subject.other	Bulk compositions	en
dc.subject.other	Copper concentration	en
dc.subject.other	Copper-based	en
dc.subject.other	Corrosive solution	en
dc.subject.other	Design/methodology/approach	en
dc.subject.other	Elemental compositions	en
dc.subject.other	Energy dispersive x-ray	en
dc.subject.other	Inductively coupled plasma atomic emission spectroscopy	en
dc.subject.other	Non destructive	en
dc.subject.other	Non-destructive technique	en
dc.subject.other	Soil solutions	en
dc.subject.other	Surface corrosion	en
dc.subject.other	X ray fluorescence spectroscopy	en
dc.subject.other	Alloys	en
dc.subject.other	Atomic emission spectroscopy	en
dc.subject.other	Cerium alloys	en
dc.subject.other	Copper alloys	en
dc.subject.other	Corrosion	en
dc.subject.other	Corrosion rate	en
dc.subject.other	Fluorescence spectroscopy	en
dc.subject.other	Inductively coupled plasma	en
dc.subject.other	Lead	en
dc.subject.other	Nondestructive examination	en
dc.subject.other	Scanning electron microscopy	en
dc.subject.other	Soil moisture	en
dc.subject.other	Surface analysis	en
dc.subject.other	Tin	en
dc.subject.other	X rays	en
dc.subject.other	Copper	en
dc.title	Non-destructive surface analysis of accelerated corroded copper alloys	en
heal.type	journalArticle	en
heal.identifier.primary	10.1108/00035591211224654	en
heal.identifier.secondary	http://dx.doi.org/10.1108/00035591211224654	en
heal.publicationDate	2012	en
heal.abstract	Purpose: The purpose of this paper is to investigate the surface corrosion products of copper alloys by non-destructive techniques (NDT) and correlate them with their bulk composition. Design/methodology/approach: Specimens of copper alloys, whose compositions were close to those of ancient copper-based artefacts, were left to be corroded in simulated soil solution containing ammoniacal buffering solution of pH = 10 in 1:1 ratio, in order to accelerate the corrosion rate. The elemental compositions of the surface corrosion products were determined versus time using X-Ray Fluorescence Spectroscopy, and the surface morphology by Scanning Electron Microscopy with Energy Dispersive X-Ray Micro-detector methods, and the results were compared to the bulk composition, as measured by Atomic Absorption Spectroscopy and Inductively Coupled Plasma Atomic Emission Spectroscopy. Findings: During the corrosion evolution of the copper alloys in the corrosive solution, transitional phenomena were observed such as an initial decrease of the copper concentration with a simultaneous increase of the concentrations of the secondary alloying metals (Sn, Zn and Pb). After 30-60 immersion days, the alloy concentrations were stabilised. Originality/value: The results of this research could contribute to the non-destructive characterisation of copper-based ancient artefacts (from which the taking of samples is not allowed). © Emerald Group Publishing Limited.	en
heal.journalName	Anti-Corrosion Methods and Materials	en
dc.identifier.doi	10.1108/00035591211224654	en
dc.identifier.volume	59	en
dc.identifier.issue	3	en
dc.identifier.spage	110	en
dc.identifier.epage	120	en