Inspection of nickel-based boron carbide PTA coatings on AISI 4140 steel
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 9 April 2019
Issue publication date: 7 May 2019
Abstract
Purpose
Plasma transferred arc (PTA) coating is a novel method for surface-coating applications. In this method, the substrate is melted using a plasma arc, and surfacing agents such as carbides are introduced to the melt pool. The purpose of this study is to investigate the effect of boron carbide (B4C) in nickel-based coating on AISI 4140 steel.
Design/methodology/approach
Samples were tested on a ball-on-disc wear device, and the microstructure, as well as wear properties, were investigated using SEM and XRD.
Findings
The effect of B4C addition was shown to be linear, with a p-value of 0.0248, indicating strong evidence. The reason for this increase was found to be the increase in third-body generation resulting from hard phases that form couples with the soft base material, nickel. It was concluded that using 6 per cent B4C was the optimal solution.
Originality/value
In the literature, the effect of neither low temperature on a nickel coating with B4C nor B4C as a single surfacing agent in a nickel base has been investigated.
Keywords
Acknowledgements
This work was supported by the Eskişehir Osmangazi University Scientific Research Commission Project 2014-599, Turkey. Gökçe M. AY received financial support from TUBITAK BIDEB 2211: National Graduate Funding Program, Turkey.
Citation
AY, G.M. and ÇELİK, O.N. (2019), "Inspection of nickel-based boron carbide PTA coatings on AISI 4140 steel", Industrial Lubrication and Tribology, Vol. 71 No. 4, pp. 548-556. https://doi.org/10.1108/ILT-06-2018-0224
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited