Volume 48, No 1, 2026, Pages 157-165
Download full text in PDFA Study on the Adhesion Strength of WC Coatings on 1045 Steel Substrate Using HVOF
Authors:
Tuan-Linh Nguyen 
,
Hong Tien Nguyen
DOI: 10.24874/ti.2060.11.25.02
Received: 4 November 2025
Revised: 6 December 2025
Accepted: 12 February 2026
Published: 15 March 2026
Abstract:
In the processing and manufacturing industries, many machine components operate under high-pressure, high-temperature, and high-friction conditions. Consequently, these components often wear out or fail quickly. To address this issue, surface treatment technologies are commonly employed to enhance the durability of machine parts. One such technology, which has been applied and proven effective, is the high-velocity oxy-fuel (HVOF) spraying method. This method can produce high-quality coatings on steel substrates. However, ensuring a strong bond between the coating and the steel substrate is a critical challenge, as harder coatings are more prone to delamination or peeling due to increased brittleness and the development of residual stresses during rapid particle acceleration and solidification in the HVOF process. This article presents the use of the Taguchi experimental method combined with ANOVA analysis to evaluate the adhesive strength of WC coatings on 1045 steel substrates when applied using the HVOF spraying method. The study aims to identify optimal spraying conditions to achieve the best adhesive strength, thereby improving the quality and lifespan of machine components by enhancing load transfer, wear resistance, and long-term service reliability.
Keywords:
HVOF, Coating, ANOVA, Adhesive strength, High-velocity oxy-fuel
