Influence of Ethanolamine on Corrosion of Alloy 690 in Simulated Secondary Water. Issue 10 (October 2015)

• Record Type: Journal Article
• Authors: Wang, Jiazhen; Wang, Jianqiu
• Is Part Of: Journal of materials science & technology. Volume 31:Issue 10(2015:Oct.)
• Page Start: 1039
• Page End: 1046
• Publication Date: 2015-10
• Subjects: Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2014.09.022
• Languages: English
• ISSNs: 1005-0302

Abstract

<abstract xml:lang="en" abstract-type="author" id="ab0010"> <title> <x xml:space="preserve">Abstract</x> </title> <sec> <p id="sp0010">Effect of ethanolamine (ETA) on Alloy 690 in simulated pressurized water reactor (PWR) secondary cooling water was studied by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, atomic force microscopy (AFM), Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR), X-ray photoelectron spectrometer (XPS) and time of flight secondary ion mass spectrometry (ToF-SIMS). The results show that moderate addition of ETA can enhance the corrosion resistance of Alloy 690 in high-temperature pressurized water and the optimum additive value is 2 mg/L. The addition of ETA contributes to the formation of oxide rather than hydroxide in the film on the surface of Alloy 690. The corrosion resistance of Alloy 690 at 320 °C with the addition of ETA is better than that at 280 °C.</p> </sec> </abstract>