Hits:

Indexed by:期刊论文

Date of Publication:2010-09-01

Journal:CORROSION SCIENCE

Included Journals:SCIE、EI

Volume:52

Issue:9

Page Number:3078-3085

ISSN No.:0010-938X

Key Words:Magnesium; Polarization; Welding

Abstract:The paper presents the corrosion behaviour of the laser-tungsten inert gas welded Mg alloy. The effects of microstructure variations of Mg alloy joint on the corrosion behaviour and reliabilities of joint are investigated. The results demonstrate that the effects of some weld defects and precipitated phases on the corrosion behaviour of weld joint are very little, and corrosion resistance of joint is predominantly influenced by grain refinement or interactions of grain refinement and continued net-shaped beta phases. Moreover, the corrosion resistance of weld joints and welding mode (butt and lap joint) keep a close relation, which must not be ignored. (C) 2010 Elsevier Ltd. All rights reserved.