Effect of streaming water vapor on the corrosion behavior of Ti60 alloy under a solid NaCl deposit in water vapor at 600 °C

被引：39
作者：
Fan, Lei [1 ,2 ]
Liu, Li [1 ]
Cui, Yu [4 ]
Cao, Min [4 ]
Yu, Zhongfen [1 ,2 ]
Oguzie, Emeka E. [3 ]
Li, Ying [4 ]
Wang, Fuhui [1 ]
机构：
[1] Northeastern Univ, Shenyttng Natl Lab Mat Sci, Shenyang 110819, Liaoning, Peoples R China
[2] CNPC Tubular Goods Res Inst, State Key Lab Performance & Struct Safety Petr Tu, Xian 710077, Shaanxi, Peoples R China
[3] Fed Univ Technol Owerri, Africa Ctr Excellence Future Energies & Electroch, PMB 1526, Owerri, Nigeria
[4] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
来源：
CORROSION SCIENCE | 2019年 / 160卷
基金：
中国国家自然科学基金;
关键词：
Titanium; Alloy; High temperature corrosion; MECHANICAL-PROPERTIES; OXIDATION BEHAVIOR; TITANIUM; TEMPERATURE; CRYSTALLINITY; DIFFUSION; OXYGEN; TICL4; FE;
D O I：
10.1016/j.corsci.2019.108177
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion behavior of Ti60 alloy coated with solid NaCl layer in dry O-2 and humid O-2 (30.8 vol.% H2O) environments at 600 degrees C have been investigated. The isotopic tracing of O-18 showed involvement of H2O in both the outer corrosion layer (OCL) and the inner corrosion layer (ICL). Theoretical calculations revealed that H2O provided 14% and 21% of the oxygen required for the formation of the outer and inner corrosion layers, respectively. Detailed analysis of corrosion products revealed that H2O enhanced the reaction of solid NaCl and TiO2 to form Na4Ti5O12 and promoted the crystallinity of corrosion products.
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页数：14
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