Corrosion of Monel-400 in Aerated Stagnant Arabian Gulf Seawater after Different Exposure Intervals

被引:1
|
作者
Sherif, El-Sayed M. [1 ,4 ]
Almajid, A. A. [1 ,2 ]
Bairamov, A. K. [3 ]
Al-Zahrani, Eissa [3 ]
机构
[1] King Saud Univ, Coll Engn, CEREM, Riyadh 11421, Saudi Arabia
[2] King Saud Univ, Coll Engn, Dept Mech Engn, Riyadh 11421, Saudi Arabia
[3] SABIC Technol Ctr, SABIC, Mat & Corros Sect, Jubail Ind City 31961, Saudi Arabia
[4] Natl Res Ctr, Dept Phys Chem, Electrochem & Corros Lab, Cairo 12622, Egypt
来源
关键词
corrosion; Monel-400; alloy; EIS; polarization; SEM; weight loss; SODIUM-CHLORIDE SOLUTIONS; COPPER-NICKEL-ALLOYS; STAINLESS-STEEL; PITTING CORROSION; RESISTANT ALLOYS; DISK ELECTRODE; NACL SOLUTIONS; BEHAVIOR; INHIBITION; DISSOLUTION;
D O I
暂无
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The corrosion of Monel-400 after varied exposure periods in naturally aerated Arabian Gulf seawater (AGS) has been carried out using gravimetric, cyclic potentiodynamic polarization, chronoamperometry, open-circuit potential, and impedance spectroscopy measurements along with SEM/EDX investigations. Gravimetric data within 160 days showed that the weight loss increased, while the corrosion rate decreased with time. SEM/EDX investigations after 160 days immersion indicated that dissolution of Monel takes place due to the selective dissolution of Ni. The electrochemical measurements confirmed the gravimetric data and proved that severity of uniform corrosion of Monel decreases, while pitting one increases with increasing the exposure period.
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页码:5430 / 5444
页数:15
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