Effects of Nd: YAG laser surface treatment on tribological properties of cold-sprayed Ti-6Al-4V coatings tested against 100Cr6 Steel under dry condition
Effects of Nd: YAG laser surface treatment on tribological properties of cold-sprayed Ti-6Al-4V coatings tested against 100Cr6 Steel under dry condition
The surfaces of cold-sprayed Ti-6Al-4V (Ti64) coatings were laser irradiated with different laser powers of 50–200 W to study the effects of Nd:YAG laser surface treatment on their tribological properties. The hardness of the laser-treated Ti64 coatings became higher with higher laser power due to the more rapid cooling caused by a larger temperature difference between the coating temperature and room temperature. The wear of the laser-treated Ti64 coatings tested against 6-mm 100Cr6 steel balls under dry condition at room temperature decreased with increased laser power as a result of their increased surface wear resistance associated with their increased surface hardness. It could be concluded that the laser surface treatment of the cold-sprayed Ti64 coatings improved their surface wear resistance compared to that of the untreated Ti64 coatings.
Cold spray, hardness, laser power, laser surface melting, Ti-6Al-4V, wear
391-402
Khun, N. W.
5218a552-1378-4f19-8aa9-eee5b38d939f
Tan, A. W.Y.
3d644676-a520-4f41-b7f1-410d1c46689d
Sun, W.
ab8e8179-f25d-4f51-95c3-8c009acf0c27
Liu, E.
f0eb8f01-7079-4d8a-9687-f00250b31ffd
21 March 2019
Khun, N. W.
5218a552-1378-4f19-8aa9-eee5b38d939f
Tan, A. W.Y.
3d644676-a520-4f41-b7f1-410d1c46689d
Sun, W.
ab8e8179-f25d-4f51-95c3-8c009acf0c27
Liu, E.
f0eb8f01-7079-4d8a-9687-f00250b31ffd
Khun, N. W., Tan, A. W.Y., Sun, W. and Liu, E.
(2019)
Effects of Nd: YAG laser surface treatment on tribological properties of cold-sprayed Ti-6Al-4V coatings tested against 100Cr6 Steel under dry condition.
Tribology Transactions, 62 (3), .
(doi:10.1080/10402004.2018.1563258).
Abstract
The surfaces of cold-sprayed Ti-6Al-4V (Ti64) coatings were laser irradiated with different laser powers of 50–200 W to study the effects of Nd:YAG laser surface treatment on their tribological properties. The hardness of the laser-treated Ti64 coatings became higher with higher laser power due to the more rapid cooling caused by a larger temperature difference between the coating temperature and room temperature. The wear of the laser-treated Ti64 coatings tested against 6-mm 100Cr6 steel balls under dry condition at room temperature decreased with increased laser power as a result of their increased surface wear resistance associated with their increased surface hardness. It could be concluded that the laser surface treatment of the cold-sprayed Ti64 coatings improved their surface wear resistance compared to that of the untreated Ti64 coatings.
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Accepted/In Press date: 4 January 2019
Published date: 21 March 2019
Additional Information:
Funding Information:
The authors are grateful for financial support from the National Research Foundation (NRF), Rolls-Royce (RR), and Nanyang Technological University (NTU), Singapore (NRF-RR-NTU research grant number of M-RT3.1). W. Sun is grateful to NTU for his Ph.D. scholarship. The authors are grateful to the project team members from Rolls-Royce, Singapore, Anna Tai and Nicholas Weeks, for their contributions to this work.
Funding Information:
The authors are grateful for financial support from the National Research Foundation (NRF), Rolls-Royce (RR), and Nanyang Technological University (NTU), Singapore (NRF-RR-NTU research grant number of M-RT3.1). W. Sun is grateful to NTU for his Ph.D. scholarship.
Publisher Copyright:
© 2019, © 2019 Society of Tribologists and Lubrication Engineers.
Keywords:
Cold spray, hardness, laser power, laser surface melting, Ti-6Al-4V, wear
Identifiers
Local EPrints ID: 475775
URI: http://eprints.soton.ac.uk/id/eprint/475775
ISSN: 1040-2004
PURE UUID: 5bc1b94b-00bb-4b4d-9987-d42d7c09136c
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Date deposited: 28 Mar 2023 16:41
Last modified: 17 Mar 2024 13:14
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Contributors
Author:
N. W. Khun
Author:
A. W.Y. Tan
Author:
W. Sun
Author:
E. Liu
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