Tribological Investigation of Plasma-Based Coatings for Use in Quasi-Monolithic Engine Cylinder Bores
department or school: Applied Science, Faculty of
department or school: Engineering, School of (Okanagan)
data provider: DSpace
identifier citation: Metals 15 (4): 370 (2025)
contributor: High Performance Powertrain Materials Lab. Okanagan Campus
creator: Banerjee, Siddharth
creator: Stroh, Joshua
creator: Sediako, Dimitry
creator: Tjong, Jimi
issued: 2025-05-12T16:34:42Z
issued: 2025-03-27
description: This study evaluates the tribological characteristics of quasi-monolithic engine cylinder coatings and piston rings using a custom-built linear reciprocating tribometer. The coatings were deposited on an Al-Si alloy cylinder bore using the Plasma Transfer Wire Arc (PTWA) and Electrolytic Jet Plasma Oxidation (EJPO) processes. The coatings’ tribological performances were investigated in the boundary lubrication regime. The performance of conventional chrome-coated cast iron piston rings was tested and compared to that of EJPO- and PTWA-coated engine cylinder samples that were extracted from a cast Al-Si engine block. Scanning electron microscopy and profilometry were used to compare the evolution of wear and the prevalent wear mechanism. This paper also presents the verification and repeatability analysis of a custom-built tribometer against a standard industry-calibrated tribometer. The wear test results showed that the EJPO coating had 0.05% to 10.35% lower wear rates than its PTWA counterpart throughout a wide range of loading conditions and sliding distances. The variation in the counter-face behavior is likely due to the different surface topographic parameters such as skewness, kurtosis, and porosity.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/91098
note: Academic Editors: Jose Outeiro andJoao NobreReceived: 1 March 2025Revised: 22 March 2025Accepted: 23 March 2025Published: 27 March 2025Citation: Banerjee, S.; Stroh, J.;Sediako, D.; Tjong, J. TribologicalInvestigation of Plasma-BasedCoatings for Use in Quasi-MonolithicEngine Cylinder Bores. Metals 2025,15, 370. https://doi.org/10.3390/met15040370Copyright: © 2025 by the authors.Licensee MDPI, Basel, Switzerland.This article is an open access articledistributed under the terms andconditions of the Creative CommonsAttribution (CC BY) license(https://creativecommons.org/licenses/by/4.0/).ArticleTribological Investigation of Plasma-Based Coatings for Use inQuasi-Monolithic Engine Cylinder BoresSiddharth Banerjee , Joshua Stroh *, Dimitry Sediako and Jimi TjongHigh Performance Powertrain Materials Laboratory, The University of British Columbia, 1540 Innovation Drive,Kelowna, BC V1V 1V7, Canada; besidd11@gmail.com (S.B.); dimitry.sediako@ubc.ca (D.S.);jtjongdr@gmail.com (J.T.)* Correspondence: joshua.leo.stroh@gmail.comAbstract: This study evaluates the tribological characteristics of quasi-monolithic enginecylinder coatings and piston rings using a custom-built linear reciprocating tribometer. Thecoatings were deposited on an Al-Si alloy cylinder bore using the Plasma Transfer Wire Arc(PTWA) and Electrolytic Jet Plasma Oxidation (EJPO) processes. The coatings’ tribologicalperformances were investigated in the boundary lubrication regime. The performance ofconventional chrome-coated cast iron piston rings was tested and compared to that of EJPO-and PTWA-coated engine cylinder samples that were extracted from a cast Al-Si engineblock. Scanning electron microscopy and profilometry were used to compare the evolutionof wear and the prevalent wear mechanism. This paper also presents the verification andrepeatability analysis of a custom-built tribometer against a standard industry-calibratedtribometer. The wear test results showed that the EJPO coating had 0.05% to 10.35% lowe…
has type: Article
is shown at: 10.14288/1.0448848
language: eng
peer review status: Reviewed
provider: Vancouver : University of British Columbia Library
publisher: Multidisciplinary Digital Publishing Institute
publisher DOI: 10.3390/met15040370
rights: CC BY 4.0
rights URI: https://creativecommons.org/licenses/by/4.0/
scholar level: Faculty
scholar level: Researcher
subject: plasma coating
subject: porosity
subject: repeatability
subject: roughness
subject: tribometer
subject: wear rate
type: Text
identifier URI: http://hdl.handle.net/2429/91098