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Study on the Microstructure of Anti-Corrosion and Wear Resistant Coating on the Inner Wall of Equipment Pipeline and the Synthesis Mechanism of Ceramic Coating

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Abstract:

A corrosion-resistant and wear-resistant coating was prepared on the inner wall of copper tube by centrifugal self-propagating melting. The surface morphology, composition and phase composition of the ceramic lining FGM coating were analyzed by XRD and SEM, and the synthesis mechanism of the ceramic coating was studied. The results show that the functionally gradient coating is composed of three layers: ceramic inner layer, metal transition layer and copper substrate layer. The surface of ceramic lining is smooth and dense, which is mainly composed of Al2O3, CaF2 and a small amount of Fe Al spinel. The results show that the alumina phase is dendrite like and grows outward perpendicular to the tube wall, and the low melting point phase is evenly distributed in the dendrite gap, which effectively improves the density of the ceramic layer.

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Materials for Modern Technologies VII View Preview

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Periodical:

Materials Science Forum (Volume 1026)

Pages:

163-168

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1026.163

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Online since:

April 2021

Authors:

Hao Liang Tian*, Xiao Min Zhang, Guo Jin, Yi Liang, Shi Cheng Wei, Chang Liang Wang, Meng Qiu Guo, Xiu Xin Du

Keywords:

Centrifugal Self-Propagating, Corrosion Resistant Coating, Pipeline Inner Wall, Wear Resistant Coating

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© 2021 Trans Tech Publications Ltd. All Rights Reserved

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