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VNUHCM Journal of

Science and Technology Development

An official journal of Viet Nam National University Ho Chi Minh City, Viet Nam since 1997

ISSN: 1859-0128
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Identify suitable range of technical parameters for the best porosity of Cr3C2 – NiCr coating on C45 steel by high velocity oxygen-fuel spraying method (HVOF)

Chien Van Dinh 1, *

  1. Hanoi University of Mining and Geology
Correspondence to: Chien Van Dinh, Hanoi University of Mining and Geology. Email: pvphuc@vnuhcm.edu.vn.
Volume & Issue: Vol. 20 No. K6 (2017) | Page No.: 66-71 | DOI: 10.32508/stdj.v20iK6.1175
Published: 2017-10-31

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Copyright © 2017 by the author(s).

Copyright The Author(s) 2023. This article is published with open access by Vietnam National University, Ho Chi Minh city, Vietnam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. 

Abstract

Nowadays, spray coating technology has been developed and widely applied in developed countries. One of the spraying methods which are most commonly used in industry is HVOF. Basically, coating layers created by HVOF are very complicated, its characteristics and microstructure strongly depend on spraying technical parameters. This paper presents experiment result of spraying Cr3C2-NiCr on 40Cr by HVOF. On the other hand, the effect of some spraying technical parameters to the porosity of coating layer is also analyzed. From experimental results, a suitable range of spraying technical parameters has been identified that could be applied to recovery shaft type wearing parts.

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