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Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials, Volume 31, Number 2(2) (2019)
Copyright(C) MYU K.K.
pp. 531-542
S&M1793 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2019.2166
Published: February 18, 2019

Mechanical Properties of Cobalt-based Alloy Coating Applied Using High-velocity Oxygen Gas and Liquid Fuel Spraying Processes [PDF]

Cheng-Fu Yang, Wei-Lung Pai, Chao-Ming Hsu, and Cheng-Yi Chen

(Received October 15, 2018; Accepted December 13, 2018)

Keywords: high-velocity oxygen gas fuel, high-velocity oxygen liquid fuel, thermal spray, cobalt-based alloy, Inconel 718 nickel alloy

High-velocity flame thermal spraying technology is widely used to apply coatings on industrial and aerospace parts, because a high flame speed yields coatings with high bonding force, high density, and low porosity. In this study, high-velocity oxygen gas fuel (HVOGF) and high-velocity oxygen liquid fuel (HVOLF) spraying processes were used to spray commercial powders of cobalt-based materials onto Inconel 718 substrates, and the flame characteristics of the two processes were observed using a real-time monitoring system during the spraying process. The metallographic and mechanical differences between the coatings produced by these two heat sources were then analyzed. The results showed that the velocity of particles produced with HVOLF was 1.23 times higher than that with HVOGF. Consequently, the melted powder produced with HVOLF led to a more compact metallographic structure. The resulting average values of microhardness and bonding strength were, respectively, 1.20 and 1.65 times higher with HVOLF than with HVOGF.

Corresponding author: Chao-Ming Hsu, Cheng-Yi Chen


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Cite this article
Cheng-Fu Yang, Wei-Lung Pai, Chao-Ming Hsu, and Cheng-Yi Chen, Mechanical Properties of Cobalt-based Alloy Coating Applied Using High-velocity Oxygen Gas and Liquid Fuel Spraying Processes, Sens. Mater., Vol. 31, No. 2, 2019, p. 531-542.



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