Degradation of the oxide film formed on Alloy 690TT in a high-temperature chloride solution

• Published in: Applied surface science Vol. 467-468; pp. 1104 - 1112
• Main Authors: Hou, Qiang, Liu, Zhiyong, Li, Chengtao, Li, Xiaogang, Shao, Jiamin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.02.2019
• Subjects: High temperature corrosion; Nickel; Pitting corrosion; TEM; XPS; Pitting corrosion; Nickel; XPS; TEM; High temperature corrosion

[Display omitted] •A monolayer oxide film with several little corrosion pits on Alloy 690TT is formed.•The film formed in a Cl−-containing solution mainly consist of NiCr2O4 and Cr(OH)3.•The adsorption of Cl− can cause the enhanced locally dissolution of Ni-rich oxides. Comparative analyses are adop...