University of Windsor Scholarship at UWindsor Electronic Theses and Dissertations Theses, Dissertations, and Major Papers 7-11-2015 Tribological Behaviours Influenced yb Surface Coatings and Morphology Guang Wang University of Windsor Follow this and additional works at: https://scholar.uwindsor.ca/etd Recommended Citation Wang, Guang, "Tribological Behaviours Influenced yb Surface Coatings and Morphology" (2015). Electronic Theses and Dissertations. 5305. https://scholar.uwindsor.ca/etd/5305 This online database contains the full-text of PhD dissertations and Masters’ theses of University of Windsor students from 1954 forward. These documents are made available for personal study and research purposes only, in accordance with the Canadian Copyright Act and the Creative Commons license—CC BY-NC-ND (Attribution, Non-Commercial, No Derivative Works). Under this license, works must always be attributed to the copyright holder (original author), cannot be used for any commercial purposes, and may not be altered. Any other use would require the permission of the copyright holder. Students may inquire about withdrawing their dissertation and/or thesis from this database. For additional inquiries, please contact the repository administrator via email ([email protected]) or by telephone at 519-253-3000ext. 3208. Tribological Behaviours Influenced by Surface Coatings and Morphology By Guang Wang A thesis Submitted to the Faculty of Graduate Studies through the Department of Mechanical, Automotive & Materials Engineering in Partial Fulfillment of the Requirements for the Degree of Master of Applied Science at the University of Windsor Windsor, Ontario, Canada 2015 ©2015 Guang Wang Tribological Behaviours Influenced by Surface Coatings and Morphology By Guang Wang APPROVED BY: Dr. B. Zhou Department of Mechanical Automotive and Materials Engineering Dr. V. Stoilov Department of Mechanical, Automotive and Materials Engineering Dr. X. Nie Advisor Department of Mechanical, Automotive and Materials Engineering Dr. H. Hu Chair of Defense Department of Mechanical, Automotive and Materials Engineering 1 May 2015 DECLARATION OF CO-AUTHORSHIP/PREVIOUS PUBLICATION I. CO- AUTHORSHIP DECLARATION I hereby declare that this thesis does not incorporate material that is result of joint research. In all cases, the key ideas, primary contributions, experimental designs, data analysis and interpretation, were performed by the author and Dr. X. Nie as advisor. Dr. Jimi Tjong is co-author of papers published in chapters 5, 6, and 7 of my thesis. I am aware of the University of Windsor Senate Policy on Authorship and I certify that I have properly acknowledged the contribution of other researchers to my thesis, and have obtained written permission from each of co-author(s) to include the above materials in my thesis. I certify that, with the above qualification, this dissertation, and the research to which it refers, is the product of my own work. II. DECLARATION OF PREVIOUS PUBLICATION This thesis includes 4 original papers that have been previously published / submitted for publication in peer reviewed journals/conference proceedings, as follows: Thesis Publication Publication title/full citation Chapter status Chapter4 Wang, G. and Nie, X., "Effect of Surface Roughness Published and Sliding Velocity on Tribological Properties of an Oxide-Coated Aluminum Alloy," SAE Technical Paper 2014-01-0957, 2014, doi:10.4271/2014-01- Chapter 5 0957.Wang, G. Nie, X., and Tjong, J., "Surface Effect of a Published PEO Coating on Friction at Different Sliding Velocities," SAE Technical Paper 2015-01-0687, 2015. Chapter 6 Wang, G. Nie, X., and Tjong, J., "Friction influenced Submitted by surface roughness and sliding speeds at oil lubricating conditions," ICMCTF 2015,1926-E3-1-11 iii Chapter 7 Wang, G. Nie, X., and Tjong, J., "High speed Proceed tribotests on a PEO coated aluminum liner after flex honing" I hereby certify that I have obtained a written permission from the copyright owner(s) to include the above published material(s) in my thesis. I certify that the above material describes work completed during my registration as graduate student at the University of Windsor. I declare that, to the best of my knowledge, my thesis does not infringe upon anyone’s copyright nor violate any proprietary rights and that any ideas, techniques, quotations, or any other material from the work of other people included in my dissertation, published or otherwise, are fully acknowledged in accordance with the standard referencing practices. Furthermore, to the extent that I have included copyrighted material that surpasses the bounds of fair dealing within the meaning of the Canada Copyright Act, I certify that I have obtained a written permission from the copyright owner(s) to include such material(s) in my dissertation. I declare that this is a true copy of my thesis, including any final revisions, as approved by my thesis committee and the Graduate Studies office, and that this thesis has not been submitted for a higher degree to any other University or Institution. iv ABSTRACT Plasma electrolytic oxidizing (PEO) is an advanced technique that has been widely used in automotive industry to produce ceramic coatings on light metal components due to their high hardness, wear resistance, corrosion resistance and low friction coefficient. In this work, PEO process was used to produce a relatively thick (~20 µm) coating on A356 Al alloy for improving the wear resistance and tribological properties of the Al alloy. Effects of surface roughness and sliding velocity on the coefficient of friction (COF) of PEO coatings were particularly investigated in different tribological tests including low speed pin-on-disc tests, high speed pin-on-disc tests, and high speed piston ring on liner tests. Cast iron was used as reference material for comparison with PEO coatings. The research results indicated that the PEO coatings could have excellent tribological properties potential for linerless aluminium engine applications. v DEDICATION I would like to dedicate this dissertation to my parents for their unconditional love, support and encouragement. I also would like to thank Dr. Xueyuan Nie for his unwavering support and encouragement over the years. vi ACKNOWLEDGEMENTS This study could not have done forward without the financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC). I would like to thank my thesis advisor, Dr. Xueyuan Nie, for his valuable suggestions and excellent supervision of this research work during my study. Many thanks to my committee members (Dr. Henry Hu, Dr. Vesselin Stoilov, Dr. Biao Zhou) for their helpful comments and careful review of this work. I would like to thank Mr. Andy Jenner from University of Windsor for his assistance with the experiments. Finally, I am thankful to the faculty, staff and graduate students at the Department of Mechanical, Automotive and Materials Engineering of the University of Windsor, particularly my colleagues at the Plasma Surface Engineering and Nanotechnology Lab, for their support and encouragement. vii TABLE OF CONTENTS DECLARATION OF CO-AUTHORSHIP/PREVIOUS PUBLICATION ................ III ABSTRACT ...................................................................................................................... V DEDICATION ................................................................................................................. VI ACKNOWLEDGEMENTS .......................................................................................... VII LIST OF TABLES .......................................................................................................... XI LIST OF FIGURES ...................................................................................................... XII CHAPTER 1 ...................................................................................................................... 1 INTRODUCTION............................................................................................................. 1 OBJECTIVE AND CONTENTS OF THIS STUDY ............................................................................................. 6 ORGANIZATION OF THE THESIS ............................................................................................................... 6 REFERENCES: ........................................................................................................................................ 8 CHAPTER 2 .................................................................................................................... 10 LITERATURE REVIEW .............................................................................................. 10 1. BACKGROUND OF APPLICATION OF ALUMINUM IN AUTOMOTIVE INDUSTRY ................................ 10 2. THE CHARACTERISTICS OF ALUMINUM ........................................................................................ 11 3. FUNCTIONAL REQUIREMENTS FOR MATERIAL OF THE ENGINE BLOCK ......................................... 12 4. ALUMINUM ENGINE BLOCK WITH CAST IRON LINERS ................................................................... 14 5. THERMAL SPRAY COATING TREATMENT ...................................................................................... 14 6. PLASMA ELECTROLYTE OXIDATION COATING TREATMENT ......................................................... 16 7. SUMMARY OF LITERATURE REVIEW ...........................................................................................