Intermetallic Phases in Aluminum Alloys and Their Roles in Localized Corrosion
By Yakun Zhu, Kai Sun, Gerald S. Frankel. 2018
181 citations recorded by the source corpus.
The intermetallic phases in AA7075-T6, including the nm-scale precipitate MgZnCu and 10-μm size Mg2Si, S-phase, Al7Fe2Cu(Mn), and Al15(FeMn)3(SiCu)2, were identified and evaluated with respect to chemical composition, structure, and relative nobility. Evaluation of each major intermetallic particle (IMP) after exposure of the alloy to electrolyte allowed assessment of their roles in the localized corrosion. Different corrosion scenarios, including dealloying, trenching, particle etching out/dissolution, localized anodic and cathodic behavior of the IMPs, and corrosion sequences were studied. Combined with previous studies, the results advance the understanding of the electrochemical properties and the associated mechanisms of localized corrosion in aluminum alloys. © The Author(s) 2018. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.0931811jes]
Subfields: Aerospace Engineering, Materials Chemistry, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/60d3024af5974159a3723f790055635b7086ec10
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Citations in the corpus
- A Novel Strategy to Additively Manufacture 7075 Aluminium Alloy With Selective Laser Melting (2021, background): “These intermetallic compounds are considered to be the ηMg(Zn,Cu,Al)2 phase, which have been frequently reported in 7xxx alloys fabricated by AM or conventional casting process [47-49].”