Corrosion behavior and elements interdiffusion between a Ni coating and GH3535 alloy with and without a CrN barrier in molten fluoride salts

• Published in: Journal of nuclear materials Vol. 514; pp. 348 - 357
• Main Authors: Wang, Chengxu, Chen, Wei, Chen, Minghui, Chen, Demin, Yang, Ke
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.02.2019; Elsevier BV
• Subjects: Chromium nitride; Coatings; Corrosion; Corrosion resistance; Corrosion resistant alloys; Diffusion barriers; Electroplating; Fluorides; High temperature corrosion; Interdiffusion; Iron; Lithium fluoride; Molten salts; Nickel base alloys; Nickel coatings; Protective coatings; Salts; Superalloys; Superalloys; High temperature corrosion; Molten salts

CrN barrier was deposited between a Ni-electroplating and GH3535 alloy with the goal of prohibiting elements interdiffusion and increasing corrosion resistance in molten FLiNaK (LiF-NaF-KF: 46.5-11.5-42.0 mol%) salt. Results indicate that the Ni-coating apparently improves corrosion resistance of GH...