Tribochemistry of bearing steels: a new AFM method to study the material-tribofilm correlation
Tribochemistry of bearing steels: a new AFM method to study the material-tribofilm correlation
A new AFM method for relating microstructure to tribofilm formation is presented. Three aspects of this method distinguish it. Firstly, the new method maps the same region employing atomic force microscopy (AFM) in three sequential steps: preEDTA and postEDTA, before and after the tribofilm removal; and as-etched, after revealing the steel microstructure. Secondly, a new software was written for correcting the displacement between the sequential AFM topography images, and for analysing the data. Thirdly, the method allows to correlate the tribofilm with the steel microstructure, and relating it with protrusion of residual carbides and tribofilm roughness for regions as large as 50 μm×50 μm. This allows to performing statistical analyses to correlate tribofilm thickness with different microstructural constituents.
AFM, Lubricant additives, Surface topography, Tribochemistry
74-81
Jelita Rydel, J.
7ec5bf19-b926-4519-af16-17b0816e48d1
Vegter, R.H.
e4bb4b26-c085-4ca9-a4f0-9f21faad750b
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
3 March 2016
Jelita Rydel, J.
7ec5bf19-b926-4519-af16-17b0816e48d1
Vegter, R.H.
e4bb4b26-c085-4ca9-a4f0-9f21faad750b
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Jelita Rydel, J., Vegter, R.H. and Rivera-Díaz-Del-Castillo, P.E.J.
(2016)
Tribochemistry of bearing steels: a new AFM method to study the material-tribofilm correlation.
Tribology International, 98, .
(doi:10.1016/j.triboint.2016.01.055).
Abstract
A new AFM method for relating microstructure to tribofilm formation is presented. Three aspects of this method distinguish it. Firstly, the new method maps the same region employing atomic force microscopy (AFM) in three sequential steps: preEDTA and postEDTA, before and after the tribofilm removal; and as-etched, after revealing the steel microstructure. Secondly, a new software was written for correcting the displacement between the sequential AFM topography images, and for analysing the data. Thirdly, the method allows to correlate the tribofilm with the steel microstructure, and relating it with protrusion of residual carbides and tribofilm roughness for regions as large as 50 μm×50 μm. This allows to performing statistical analyses to correlate tribofilm thickness with different microstructural constituents.
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Accepted/In Press date: 30 January 2016
e-pub ahead of print date: 12 February 2016
Published date: 3 March 2016
Keywords:
AFM, Lubricant additives, Surface topography, Tribochemistry
Identifiers
Local EPrints ID: 492426
URI: http://eprints.soton.ac.uk/id/eprint/492426
ISSN: 0301-679X
PURE UUID: 2aefc234-dfb1-44cd-bba5-e3e4e5435f81
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Date deposited: 26 Jul 2024 16:37
Last modified: 27 Jul 2024 02:08
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Contributors
Author:
J. Jelita Rydel
Author:
R.H. Vegter
Author:
P.E.J. Rivera-Díaz-Del-Castillo
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