Underlying mechanism for the effects of composition and microstructure on the corrosion resistance of Al-based amorphous alloys: a review

Abstract

Al-based metallic glasses (MGs) effectively circumvent the longstanding tradeoff between corrosion resistance and mechanical properties inherent in commercial Al alloys due to their distinctive structural and compositional attributes. This article systematically elucidates the effects of composition and microstructure on the corrosion evolution process, particularly regarding pitting corrosion. This comprehensive examination encompasses aspects such as Cl⁻ adsorption, passive film characteristics, and the stability of pit growth, and based on insights drawn from this exhaustive review of the literature, it advocates for further investigations aimed at advancing the development of corrosion-resistant Al-based MGs.

Keywords:

• Aluminum
• amorphous alloy
• composition
• structure
• pitting corrosion

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

No data was used for the research described in the article.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [Nos. 52271157, 52171163 and U1908219) and the Key Research Program of the Chinese Academy of Sciences, Grant NO. ZDRW-CN-2021–2-2.