Effect of pre-immersion on the SCC of heat-treated AA7050 in an alkaline 3.5%NaCl

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Title:	Effect of pre-immersion on the SCC of heat-treated AA7050 in an alkaline 3.5%NaCl
Authors:	Liao,HL;Lin,JC;Lee,SL
Contributors:	化學工程與材料工程學系
Keywords:	STRESS-CORROSION CRACKING;ALUMINUM-ALLOYS;MG;AL;MECHANISMS;STRENGTH;STEEL
Date:	2009
Issue Date:	2010-06-29 17:26:45 (UTC+8)
Publisher:	中央大學
Abstract:	AA7050 heat-treated variously was pre-immersed in an alkaline 3.5%NaCl for 240 h, and the pre-immersion effect on its SCC in the same environment was of interest. This effect was investigated using slow strain rate test and electrochemical techniques. For the specimens experienced a specific heat treatment, the pre-immersed one revealed higher SCC-resistance than that without pre-immersion. Analysis of the corrosion products benefited to delineate the enhancement in SCC-resistance. The corrosion product on T6 was enriched with CuO. The presence of copper oxide in the corrosion product results in a better resistance to SCC for T6 than other specimens. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.
Relation:	CORROSION SCIENCE
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

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