Role of dissolved hydrogen in water in corrosion of alloy 600 in high temperature water
作者： Qunjia Peng , Tetsuo Shoji , Juan Hou , Kazuhiko Sakaguchi , Yoichi Takeda
DOI: 10.1007/978-3-319-48760-1_112
关键词: Corrosion 、 Inorganic chemistry 、 Dissolution 、 Oxide 、 Non-blocking I/O 、 Materials science 、 Hydrogen 、 Alloy 、 Microstructure 、 Anaerobic corrosion
摘要: Characterization of the microstructure and chemical composition oxide films formed on Alloy 600 in high temperature water with various dissolved hydrogen (DH) levels that allowed Ni/NiO phase transition to occur were conducted. The results showed increasing DH decreased thickness film, conjunction increase Cr- but decrease Ni-concentrations film. Further, it was found deteriorated stability protectiveness film for values up slightly above value. effect attributed an oxidative dissolution process Ni following reduction by hydrogen, which suggests corrosion Ni-base alloys hydrogenated is dominated a synergic oxidation./
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