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Corrosion behavior of Mg-5Al-xZn alloys in 3.5 wt.% NaCl solution
journal contribution
posted on 2014-12-15, 00:00 authored by N D Nam, M Mathesh, T V Le, H T NguyenFive types of Mg-5Al alloys with different weight percentages of Zn ranging from 0 to 4 wt.% were examined using electrochemical techniques and surface analysis. The electrochemical results indicated that the Mg-5Al alloys containing Zn have a lower corrosion and hydrogen evolution rates than the Mg-5Al based specimens with a decrease of value being observed with the decrease in Zn content. Zn addition induced the precipitation of Mg-Al and Mg-Zn phases in the Mg matrix along with grain refinement and increased an interaction of Zn oxide with Mg and Al products serving as a corrosion barrier. © 2014 Elsevier B.V. All rights reserved.
History
Journal
Journal of Alloys and CompoundsVolume
616Pagination
662 - 668Publisher
Elsevier LtdLocation
Amsterdam, NetherlandsPublisher DOI
ISSN
0925-8388Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, ElsevierUsage metrics
Keywords
Corrosion resistanceGrain refinementHydrogen evolution rateMg alloysMicrostructureZincScience & TechnologyPhysical SciencesTechnologyChemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringChemistryMaterials ScienceAZ91 MAGNESIUM ALLOYAZ31 MG ALLOYZN-ZR ALLOYMECHANICAL-PROPERTIESMATRIX COMPOSITESSINGLE-CRYSTALSHOT EXTRUSIONRESISTANCEADDITIONSMAGNESIUM ALLOYEVOLUTIONAZ31PERFORMANCEREFINEMENTCondensed Matter Physics
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