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Effect of surface roughness and plasma current to adhesion of Cr₃C₂-NiCr coating fabricated by plasma spray technique on 16Mn steel

Pham Duc Cuong

Hanoi University of Industry, 298 Cau Dien, Bac Tu Liem, Hanoi 10000, Vietnam

E-mail Address: phamcuong@haui.edu.vn

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and

Dang Xuan Thao

Hanoi University of Industry, 298 Cau Dien, Bac Tu Liem, Hanoi 10000, Vietnam

E-mail Address: xuanthao.haui@gmail.com

Corresponding author.

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https://doi.org/10.1142/S0217979221400373Cited by:2 (Source: Crossref)

This article is part of the issue:

Special Issue on the Physics and Mechanics of New Materials and Their Application
Guest Editors: Prof. Yun-Hae Kim, Prof. Nao-Aki Noda, Prof. Ivan A. Parinov, Prof. Shun-Hsyung Chang and Dr. Pankaj Koinkar

Abstract

The life time and quality of thermal spray coatings are strongly influenced by the technological parameters of the coating process and characteristics of the coated surface. In this paper, 16Mn steel substrates of different surface roughness are coated by Cr₃C₂-NiCr using a plasma spray technique. The adhesion of the coating to the substrate has been studied in relation to the roughness of the substrate and the plasma current of the spraying process. The results showed that the adhesion of the Cr₃C₂-NiCr coating to 16Mn steel substrate is strongly influenced by the roughness and the current intensity. The range of substrate surface roughness and current intensity at which the Cr₃C₂-NiCr exhibited high adhesion to the steel substrate are discussed in this paper.

Keywords:

PACS: 68.35.Np, 68.35.Ct, 81.20.−n, 81.70.−q

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