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Tailoring the structural heterogeneity and electrochemical behavior of Fe-based bulk metallic glasses by Ar+ irradiation.
- Source :
-
Journal of Alloys & Compounds . Mar2023, Vol. 936, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- The microstructure, electrochemical responses, and passive film characteristics of FeCrMoWCBY bulk metallic glasses (BMGs) under Ar+ irradiation were investigated. Under exposure to high irradiation fluence, BMGs retained a large portion of an amorphous structure and exhibited excellent corrosion resistance in 1 mol/l HCl solution. With the enhancive irradiation fluence, the increasing crystal-like clusters and even nanocrystals were gradually precipitated from the exterior amorphous matrix of BMGs. By reducing the proportions of Cr3+/Mo6+/W6+ cations and work functions at the outer passive film, the nano-crystallization destroyed the uniformity and stability of passive films, thus weakening the anti-corrosion capacity of irradiated BMGs. This finding facilitates the potential application of Fe-based BMGs under extreme nuclear-irradiated conditions. [Display omitted] • Fe-based bulk metallic glasses (BMGs) show superior irradiation resistance. • Slight nanocrystals were precipitated at the intense irradiated surface of BMGs. • Heterogeneity destabilized passive films and weakened the anti-corrosion of BMGs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 936
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 161277705
- Full Text :
- https://doi.org/10.1016/j.jallcom.2022.168332