Corrosion behavior of 904L austenitic stainless steel in hydrofluoric acid

Corrosion behaviors of 904L austenitic stainless steel in HF and HCl were studied and compared using electrochemical method, microscopic analysis, and phase analysis. An insoluble layer is deposited on 904L in HF due to a preferential reaction between [F(−)] and the [Ni] from the alloy. This insolub...

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Detalles Bibliográficos
Autores principales: Zou, Guobo, Shi, Wei, Xiang, Song, Ji, Xuanming, Ma, Guoqiang, Ballinger, R. G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077474/
https://www.ncbi.nlm.nih.gov/pubmed/35541448
http://dx.doi.org/10.1039/c7ra12453h
Descripción
Sumario:Corrosion behaviors of 904L austenitic stainless steel in HF and HCl were studied and compared using electrochemical method, microscopic analysis, and phase analysis. An insoluble layer is deposited on 904L in HF due to a preferential reaction between [F(−)] and the [Ni] from the alloy. This insoluble deposited layer not only helps isolate the aggressive ions from the base metal, but also inhibits the passivation of 904L in HF, the mechanism for which was entirely different from that in HCl.

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