Effect of in-situ pre-soaking in seawater on the erosion-corrosion properties and micro-mechanism of nickel aluminium bronze alloy

被引：7
|
作者：
Wang, Wanyu [1 ,3 ,4 ]
Zhang, Wenjing [1 ,3 ,4 ]
Huang, Guojie [2 ]
Mi, Xujun [3 ]
Huang, Lei [2 ]
机构：
[1] GRINM Grp Co Ltd, State Key Lab Nonferrous Met & Proc, Beijing 100088, Peoples R China
[2] China Nonferrous Met Innovat Inst Tianjin Co Ltd, 86 Ziguang Rd Automot Ind Area, Tianjin 300393, Peoples R China
[3] GRIMAT Engn Inst Co Ltd, Beijing 101407, Peoples R China
[4] Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 228卷
关键词：
Nickel aluminium bronze; TEM; Erosion; EIS; Passive film; CU-NI; MECHANICAL-PROPERTIES; ELECTROCHEMICAL CORROSION; PRODUCT FILM; AS-CAST; BEHAVIOR; MICROSTRUCTURE; COPPER; RESISTANCE; IMPEDANCE;
D O I：
10.1016/j.corsci.2024.111841
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of pre-soaking in seawater on the corrosion behaviour of the nickel aluminium bronze alloy were examined using electrochemical and erosion-corrosion tests. The surface passive film of the alloy pre-soaked for 30 d consisted of an outer loose CuO film, a middle dense Cu2O film, and a denser inner Cu2O film contained Al2O3. The corrosion properties of the sample pre-soaked for 30 d were significantly improved, with similar to 71% reduction in corrosion rate at 3 m/s compared with the unsoaked sample. Strong bonding between the substrate and passive films formed during pre-soaking effectively inhibited the entry of ions from seawater.
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收藏
页数：15
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