Cavitation Erosion Characteristics of an Iron-Based Coating Prepared by High Velocity Arc Spraying

Abstract:

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In order to increase cavitation erosion resistance of fluid machinery, an iron-based coating was prepared by high velocity arc spraying (HVAS) on the surface of 1Cr18Ni9Ti stainless steel. The microstructure and performance were investigated respectively by optical microscope (OM), X-ray diffraction (XRD), scanning electron microscope (SEM), Vickers hardness and vibratory cavitation apparatus. The results indicated that the coating had the higher hardness (8.67GPa) and the finer structure than ZG230-450 (1.86GPa) used actual in water conservancy. Compared with ZG230-450, cavitation erosion resistance of the coating was better, and the coating presented flakiness stripping mode. The results indicated that the HVAS is a promising method to prepare the cavitation resistance coating.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

523-527

DOI:

10.4028/www.scientific.net/AMR.189-193.523

Citation:

Z. H. He et al., "Cavitation Erosion Characteristics of an Iron-Based Coating Prepared by High Velocity Arc Spraying", Advanced Materials Research, Vols. 189-193, pp. 523-527, 2011

Online since:

February 2011

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Price:

$35.00

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