On the corrosion-induced mechanical degradation for different artificial aging conditions of 2024 aluminum alloy

Alexopoulos, ND

dc.contributor.author	Alexopoulos, ND	en
dc.date.accessioned	2014-03-01T01:31:34Z
dc.date.available	2014-03-01T01:31:34Z
dc.date.issued	2009	en
dc.identifier.issn	0921-5093	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19817
dc.subject	2024 aluminum alloy	en
dc.subject	Corrosion	en
dc.subject	Fracture toughness	en
dc.subject	Hydrogen embrittlement	en
dc.subject	Tensile test	en
dc.subject	Trapping states	en
dc.subject.classification	Nanoscience & Nanotechnology	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	2024 aluminum alloy	en
dc.subject.other	Aging conditions	en
dc.subject.other	Al 2024	en
dc.subject.other	Artificial aging	en
dc.subject.other	Corrosion damage	en
dc.subject.other	Effective thickness	en
dc.subject.other	Exfoliation corrosion	en
dc.subject.other	Mechanical degradation	en
dc.subject.other	Microcrack networks	en
dc.subject.other	Microstructure analysis	en
dc.subject.other	Nominal thickness	en
dc.subject.other	Surface pits	en
dc.subject.other	Tensile test	en
dc.subject.other	Tensile tests	en
dc.subject.other	Trapping states	en
dc.subject.other	Alumina	en
dc.subject.other	Aluminum	en
dc.subject.other	Aluminum alloys	en
dc.subject.other	Cerium alloys	en
dc.subject.other	Corrosion	en
dc.subject.other	Degradation	en
dc.subject.other	Fracture	en
dc.subject.other	Hydrogen	en
dc.subject.other	Hydrogen embrittlement	en
dc.subject.other	Mechanical properties	en
dc.subject.other	Microstructure	en
dc.subject.other	Tensile testing	en
dc.subject.other	Fracture toughness	en
dc.title	On the corrosion-induced mechanical degradation for different artificial aging conditions of 2024 aluminum alloy	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.msea.2009.05.023	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.msea.2009.05.023	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	In the present work, the effect of different artificial aging conditions of the Al 2024-T3 on the mechanical properties degradation due to corrosion exposure is studied. Different artificial aging conditions had been applied to tensile and fracture toughness specimens, which were subsequently exposed to exfoliation corrosion environment. Microstructure analysis showed that for the reference (T3) and peak-aged (PA) specimens the corrosion-induced surface pits were followed by formation of a microcrack network, while only large surface pits were noticed for the over-aged (OA) specimens. The tensile test results showed that the higher the (OA) condition, the lower degradation due to corrosion exposure the alloy has. Fracture toughness K-cr calculated on the basis of nominal thickness of the specimens confirms that the decrease due to corrosion is lower for the (OA) specimens. The K-cr values calculated on the basis of effective thickness of the specimens showed that the degree of decrease due to corrosion damage is negligible for the (OA) specimens. This phenomenon has been explained and discussed based on the resulting microstructure for the various aging conditions of the alloy. (C) 2009 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE SA	en
heal.journalName	Materials Science and Engineering A	en
dc.identifier.doi	10.1016/j.msea.2009.05.023	en
dc.identifier.isi	ISI:000269290800007	en
dc.identifier.volume	520	en
dc.identifier.issue	1-2	en
dc.identifier.spage	40	en
dc.identifier.epage	48	en