FORMATION OF CHROMIUM COATING AND COMPARATIVE EXAMINATION ON CORROSION RESISTANCE WITH13CrSTEEL INCO2-SATURATED SIMULATED OILFIELD BRINE

Jiaojuan Zou, Faqin Xie, Naiming Lin (), Xiaofei Yao, Wei Tian and Bin Tang
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Jiaojuan Zou: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Faqin Xie: School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
Naiming Lin: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Xiaofei Yao: School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
Wei Tian: School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
Bin Tang: Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China

Surface Review and Letters (SRL), 2013, vol. 20, issue 03n04, 1-7

Abstract: In order to enhance the surface properties of P110 oil casing tube steel and increase its usage during operation, chromium coating was fabricated by pack cementation. Scanning electron microscope, energy dispersive spectrometry and X-ray diffraction were used to investigate the surface morphology, cross-sectional microstructure, element distribution and phase constitutions of the coating. Comparative examinations on corrosion resistance between chromium coating and13Crstainless steel inCO2-saturated simulated oilfield brine were carried out via electrochemical measurements. The results showed that the obtained coating was uniform and compact, mainly consisted ofCrxCyand doped with minorCr2N. Chromizing treatment made it possible to create on the working surface of P110 steel with enhanced corrosion resistance, and the chromium coating indicated lower pitting corrosion sensitivity than that of13Crstainless steel.

Keywords: Chromium coating; 13Crstainless steel; P110 steel; electrochemical; corrosion (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1142/S0218625X13500418

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