Review-Corrosion-Resistant Metastable Al Alloys: An Overview of Corrosion Mechanisms

被引：53
作者：
Esquivel, J. [1 ]
Gupta, R. K. [1 ]
机构：
[1] Univ Akron, Dept Chem Biomol & Corros Engn, Akron, OH 44325 USA
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2020年 / 167卷 / 08期
基金：
美国国家科学基金会;
关键词：
Corrosion protection; Passivity; Localized corrosion; X-RAY-ABSORPTION; OXIDE-COVERED ALUMINUM; POINT-DEFECT MODEL; PITTING CORROSION; ION-IMPLANTATION; LOCALIZED CORROSION; PIT INITIATION; PASSIVE FILMS; PURE IRON; MICROALLOYING ADDITIONS;
D O I：
10.1149/1945-7111/ab8a97
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Commercial aluminum alloys exhibit localized corrosion when exposed to environments containing aggressive anions. Alloying of Al with specific elements (M: Cr, Mo, V, Nb, etc) using non-equilibrium processing techniques has been reported to result in significantly improved corrosion resistance due to the formation of a supersaturated solid solution and uniform distribution of M in the matrix. Several theories describing the corrosion behavior of Al-M alloys have been postulated. This paper presents an overview of the most common non-equilibrium alloying techniques implemented for the production of the metastable Al-M alloys and posited corrosion mechanisms for the improved corrosion resistance. (C) 2020 The Author(s). Published on behalf of The Electrochemical Society by IOP Publishing Limited.
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页数：12
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