DataVXAdvanced Engineering MaterialsPaper
journal article·2015-11Open access

Corrosion Behaviour of Al–4Mg–1Cu (wt%) Microalloyed with Si and Ag

R. K. Gupta, C. Li, J. Xia, X. Zhou, G. Sha, B. Gun, S. P. Ringer, N. Birbilis

Advanced Engineering Materials· Volume 17· Issue 11
Publisher pageOpen full text
Source abstract

Abstract

The microstructure, hardness, and corrosion behavior of Al–4Mg–1Cu–0.5Si and Al–4Mg–1Cu–0.5Si–0.4Ag (wt%) following various aging times is investigated. Potentiodynamic polarisation and immersion tests reveal an apparent insensitivity in corrosion rates for the alloys studied with aging, along with a higher pitting corrosion resistance for the Ag containing alloy. The addition of Ag to the base Al–4Mg–1Cu–0.5Si composition increases the age hardening response and corrosion performance by modifying the morphology, size, and chemical composition of precipitates (from S‐phase to Z‐phase).
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Research context

Metals & alloys

OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Microstructure and mechanical properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Biomolecular Engineering The University of Akron Akron Ohio 44325 USA

School of Materials Science and Engineering Tianjin University Tianjin 30072 China

Australian Centre for Microscopy & Microanalysis The University of Sydney New South Wales 2006 Australia

Department of Materials Science and Engineering Monash University Clayton Victoria 3800 Australia

Herbert Gleiter Institute of Nanoscience Nanjing University of Science and Technology Jiangsu 210094 China

School of Materials Science and Engineering The University of New South Wales Australia

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