Effect of the substrate dilution on the room and high temperature tribological behaviour of Ni-based coatings deposited by PTA on grey cast iron
Effect of the substrate dilution on the room and high temperature tribological behaviour of Ni-based coatings deposited by PTA on grey cast iron
In the present investigation the effect of the substrate dilution on room and high temperature (550 and 700 °C) tribological behaviour of nickel based hardfaced coating deposited by plasma transferred arc onto a grey cast iron was investigated and compared to the uncoated grey cast iron. At room temperature, the wear loss of coatings was independent of the substrate dilution and similar to the grey cast iron. At high temperatures, coating produced with high dilution displayed the highest wear resistance between all the samples. This is attributed to the formation of a protective tribo-layer resulting from the agglomeration of a high amount of oxide debris due to its lower oxidation resistance when compared to the sample produced with low dilution.
plasma transferred arc, ni-based alloy, substrate dilution effect, tribology, high temperature wear
11-19
Fernandes, F.
85b7ced5-c89b-47bb-800f-2dc2738b4aa0
Loureiro, A.
25c8582e-f674-4c23-bafb-66ee2a49df49
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Cavaleiro, A
114e42eb-7255-47ef-834d-0546d56d3171
15 November 2015
Fernandes, F.
85b7ced5-c89b-47bb-800f-2dc2738b4aa0
Loureiro, A.
25c8582e-f674-4c23-bafb-66ee2a49df49
Polcar, T.
c669b663-3ba9-4e7b-9f97-8ef5655ac6d2
Cavaleiro, A
114e42eb-7255-47ef-834d-0546d56d3171
Fernandes, F., Loureiro, A., Polcar, T. and Cavaleiro, A
(2015)
Effect of the substrate dilution on the room and high temperature tribological behaviour of Ni-based coatings deposited by PTA on grey cast iron.
Surface and Coatings Technology, 281, .
(doi:10.1016/j.surfcoat.2015.09.034).
Abstract
In the present investigation the effect of the substrate dilution on room and high temperature (550 and 700 °C) tribological behaviour of nickel based hardfaced coating deposited by plasma transferred arc onto a grey cast iron was investigated and compared to the uncoated grey cast iron. At room temperature, the wear loss of coatings was independent of the substrate dilution and similar to the grey cast iron. At high temperatures, coating produced with high dilution displayed the highest wear resistance between all the samples. This is attributed to the formation of a protective tribo-layer resulting from the agglomeration of a high amount of oxide debris due to its lower oxidation resistance when compared to the sample produced with low dilution.
Text
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- Accepted Manuscript
More information
Accepted/In Press date: 19 September 2015
e-pub ahead of print date: 21 September 2015
Published date: 15 November 2015
Keywords:
plasma transferred arc, ni-based alloy, substrate dilution effect, tribology, high temperature wear
Organisations:
nCATS Group
Identifiers
Local EPrints ID: 382598
URI: http://eprints.soton.ac.uk/id/eprint/382598
ISSN: 0257-8972
PURE UUID: 76c193ca-96b4-4a2d-9e6b-62a7477ec2b4
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Date deposited: 02 Nov 2015 12:44
Last modified: 15 Mar 2024 03:40
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Contributors
Author:
F. Fernandes
Author:
A. Loureiro
Author:
A Cavaleiro
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