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Effect of metallic ion products on the corrosion of GH3535 alloy in a eutectic (Li, Na, K) F melt
- Source :
- Journal of Materials Research and Technology, Vol 22, Iss , Pp 1014-1025 (2023)
- Publication Year :
- 2023
- Publisher :
- Elsevier, 2023.
-
Abstract
- The effect of metallic ions and carbides on the corrosion of the GH3535 alloy was studied in a eutectic (Li, Na, K) F melt at 700 °C for different immersion times (20, 40, and 60 h). The results indicate that the average ΔV value between the carbides and the γ matrix is approximately 65 mV, which leads to galvanic corrosion between them at grain boundaries in the molten fluoride salt. Metallic ions produced by the corrosion of the alloy, such as Cr3+, Mo3+, and Ni2+, accelerated its corrosion in molten fluoride salts, which caused an “autocatalytic zone” to form within the corrosion layer during the exposure process.
Details
- Language :
- English
- ISSN :
- 22387854 and 86323830
- Volume :
- 22
- Issue :
- 1014-1025
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of Materials Research and Technology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.3bb8c761adc442999e916a8632383007
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.jmrt.2022.11.174