CORROSION RESISTANCE OF Fe–Al/Al2O3 DUPLEX COATING ON PIPELINE STEEL X80 IN SIMULATED OIL AND GAS WELL ENVIRONMENT-Reference-Cited by-同舟云学术

CORROSION RESISTANCE OF Fe–Al/Al2O3 DUPLEX COATING ON PIPELINE STEEL X80 IN SIMULATED OIL AND GAS WELL ENVIRONMENT

Published:2015-06-15 Issue:04 Volume:22 Page:1550045
ISSN:0218-625X
Container-title:Surface Review and Letters
language:en
Short-container-title:Surf. Rev. Lett.

Author:

HUANG MIN¹²,WANG YU¹,WANG PING-GU¹,SHI QIN-YI¹,ZHANG MENG-XIAN¹

Affiliation:

1. Zhejiang Provincial Key Laboratory for Cutting Tools, TaiZhou University, TaiZhou 318000, P. R. China

2. School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an 710065, P. R. China

Abstract

Corrosion resistant Fe – Al / Al 2 O 3 duplex coating for pipeline steel X80 was prepared by a combined treatment of low-temperature aluminizing and micro-arc oxidation (MAO). Phase composition and microstructure of mono-layer Fe – Al coating and Fe – Al / Al 2 O 3 duplex coating were studied by X-ray diffraction (XRD), scanning electron microscope (SEM) with energy dispersive spectrometer (EDS). Corrosion resistance of the coated pipeline steel X80 in a simulated oil and gas well condition was also investigated. Mono-layer Fe – Al coating consists of Fe 2 Al 5 and FeAl , which is a suitable transitional layer for the preparation of ceramic coating by MAO on the surface of pipeline steel X80. Under the same corrosion condition at 373 K for 168 h with 1 MPa CO 2 and 0.1 MPa H 2 S , corrosion weight loss rate of pipeline steel X80 with Fe – Al / Al 2 O 3 duplex coating decreased to 23% of original pipeline steel X80, which improved by 10% than that of pipeline steel X80 with mono-layer Fe – Al coating. It cannot find obvious cracks and pits on the corrosion surface of pipeline steel X80 with Fe – Al / Al 2 O 3 duplex coating.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218625X15500456

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