Optimized Surface Roughening by Pulsed Waterjet for Suitable Adhesion Strength of Plasma Transferred Wire Arc Coating

This study paired the high-pressure pulsed waterjet process and plasma transferred wire arc technology to develop a technique to remanufacture worn-out cylinder bores and give new life to worn-out engines. Plasma transferred wire arc technology is currently being used for engine remanufacturing to deposit the top-coat. The idea behind this project is to eliminate the expensive nickel-aluminum pre-bond coat by optimizing the surface roughness profile of the substrate to provide acceptable mechanical bonding between the coating and substrate. In this study, low carbon stainless-steel was plasma spray coated on a range of pulsed waterjet roughened grey cast iron and cast aluminum A380 surface profiles. The roughened surfaces increased the adhesion strength between the substrates and stainless-steel coating. Limitations exist, such that, if the roughness profile generated was copious the coating mirrored the roughened surface profile. Additionally, if the roughness profile was insignificant the coating was completely removed during detachment-based failure.

Name thesis:degree_name

Master of Applied Science (M.App.Sc.)

Level thesis:degree_level

Master's

Discipline thesis:degree_discipline

Engineering, Materials

Grantor dc:publisher

Carleton University

Year dc:date.issued

2020

Author dc:creator

• O'Neil, Nicholas Randal Leo

Statement dc:rights

• Copyright © 2020 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.

Language dc:language.iso

en

DOI

10.22215/etd/2020-14261

OAI identifier oai:identifier

oai:carleton.scholaris.ca:20.500.14718/41972