Benefit of the corrosion product film formed on a new weathering steel containing 3% nickel under marine atmosphere in Maldives

被引：141
作者：
Wu, Wei [1 ]
Cheng, Xuequn [1 ,2 ]
Zhao, Jinbin [1 ,3 ]
Li, Xiaogang [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Corros & Protect Ctr, Beijing 100083, Peoples R China
[2] Natl Mat Corros & Protect Data Ctr, Beijing 100083, Peoples R China
[3] NanJing Iron & Steel Co Ltd, Nanjing 210000, Peoples R China
来源：
CORROSION SCIENCE | 2020年 / 165卷
基金：
中国国家自然科学基金;
关键词：
Weathering steel; Nickel; Corrosion product film; Maldives; Atmospheric corrosion; HIGH-STRENGTH STEEL; LOW-ALLOY STEELS; STAINLESS-STEEL; CARBON-STEEL; RUST LAYER; ELECTROCHEMICAL-BEHAVIOR; PROTECTIVE ABILITY; DIFFERENT PH; NI; IRON;
D O I：
10.1016/j.corsci.2019.108416
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Corrosion product film (CPF) formation and its beneficial effect on corrosion protection of a Ni advanced weathering steel (WS), 3Ni WS, was investigated under the harsh marine environment in Maldives. The influence of Ni on the structure and the corrosion resistance mechanism of CPF was in detail studied. The CPF of 3Ni WS exhibits superiority in physical structure, phase composition, elemental distribution, and electrochemical properties over that of the conventional WS studied. These advantages are attributed to the formation and aggregation of NiFe2O4 in the inner layer of the CPF, which refines the crystal phases, transforms gamma-FeOOH to fine-grained alpha-FeOOH, and forms an electronegative inner layer to resist Cl.
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页数：15
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