Wear and corrosion resistance of thick Ti-6Al-4V coating deposited on Ti-6Al-4V substrate via high-pressure cold spray
Wear and corrosion resistance of thick Ti-6Al-4V coating deposited on Ti-6Al-4V substrate via high-pressure cold spray
Ti-6Al-4V (Ti64) coating with a thickness of about 9 mm was deposited on commercial Ti64 substrate via a high-pressure cold spray process. The microstructure, hardness, and wear and corrosion resistance of the Ti64 coating were systematically investigated. The hardness of the Ti64 coating was higher than that of the Ti64 substrate due to the cold-worked microstructure of the coating. The tribological results showed that there was no significant difference in the surface wear rates of the Ti64 coating measured on its different layers while the surface wear resistance of the Ti64 coating was lower than its cross-sectional wear resistance. The corrosion results showed that the Ti64 coating did not effectively prevent its underlying Ti64 substrate from corrosion due to the occurrence of pores in the coating microstructure. It could be concluded that the hardness and wear resistance of the Ti64 coating were comparable to those of the commercial Ti64 substrate.
cold spray, corrosion, hardness, microstructure, thick Ti-6Al-4V coating, wear
1393-1407
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
1 August 2017
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.
(2017)
Wear and corrosion resistance of thick Ti-6Al-4V coating deposited on Ti-6Al-4V substrate via high-pressure cold spray.
Journal of Thermal Spray Technology, 26 (6), .
(doi:10.1007/s11666-017-0588-8).
Abstract
Ti-6Al-4V (Ti64) coating with a thickness of about 9 mm was deposited on commercial Ti64 substrate via a high-pressure cold spray process. The microstructure, hardness, and wear and corrosion resistance of the Ti64 coating were systematically investigated. The hardness of the Ti64 coating was higher than that of the Ti64 substrate due to the cold-worked microstructure of the coating. The tribological results showed that there was no significant difference in the surface wear rates of the Ti64 coating measured on its different layers while the surface wear resistance of the Ti64 coating was lower than its cross-sectional wear resistance. The corrosion results showed that the Ti64 coating did not effectively prevent its underlying Ti64 substrate from corrosion due to the occurrence of pores in the coating microstructure. It could be concluded that the hardness and wear resistance of the Ti64 coating were comparable to those of the commercial Ti64 substrate.
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Accepted/In Press date: 1 June 2017
Published date: 1 August 2017
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Publisher Copyright:
© 2017, ASM International.
Keywords:
cold spray, corrosion, hardness, microstructure, thick Ti-6Al-4V coating, wear
Identifiers
Local EPrints ID: 475762
URI: http://eprints.soton.ac.uk/id/eprint/475762
ISSN: 1059-9630
PURE UUID: 03df5434-9d48-458a-88b3-d87a4397795b
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Date deposited: 28 Mar 2023 16:30
Last modified: 17 Mar 2024 00:11
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Contributors
Author:
N. W. Khun
Author:
A. W.Y. Tan
Author:
W. Sun
Author:
E. Liu
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