Mapping sliding wear of steels in aqueous conditions

This version is available at https://strathprints.strath.ac.uk/18850/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Abstract:In recent years, the development of thin film systems for decorative applications has attracted significant attention in scientific research. These decorative coatings require, not only an attractive appearance for market applications, but also an ability to protect the surface underneath. Because of this, corrosion, wear and their combined effects (termed tribo-corrosion) are particularly important for lifetime prediction.The tribo-corrosion behaviour of a range of single layered titanium oxycarbide, TiC x O y ,coatings, produced by DC reactive magnetron sputtering, has been studied and reported as a function of electrode potential (-0.9 V, -0.5 V, 0.0 V and +0.5 V) and applied load (3, 6 and 9 N). The study was conducted in a reciprocating sliding tribosystem (Plint TE 67/E) in a bio fluid (an artificial perspiration solution) at room temperature. During the wear tests, both the open-circuit potential and the corrosion current were monitored. 2The results showed that electrode potential and load have a significant influence on the total material loss. The variations in R p (polarization resistance) and C f (capacitance) before and after sliding, obtained by Electrochemical Impedance Spectroscopy (EIS)were evaluated in order to provide an understanding of the resistance of the film in such conditions. Tribo-corrosion maps were generated, based on the results, indicating the change in mechanisms of the tribological and corrosion parameters for such coatings.

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“…16. The criteria has been selected as: wastage zone, which is located at high anodic potential [28][29].…”

Section: Wastage Mapmentioning

confidence: 99%

Tribocorrosion behaviour of TiC O thin films in bio-fluids

Mathew

Ariza

Rocha

et al. 2010

Electrochimica Acta

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“…At the stage III, which the coefficient of friction is stable, the wear mechanism is a mixture of adhesion, abrasion and oxidation. The oxide transfer from the mild carbon steel disc to HSS pin significantly contributed to the scale formed on the HSS pin surface Stack and Chi (2003) [17] studied the sliding wear-corrosion behaviour of steels in a pin-ondisc apparatus in aqueous conditions. The effects of applied load and velocity were evaluated at various electrochemical potentials in carbonate/bicarbonate solution (buffered pH 9.8).…”

Section: Brief Overview Of Literaturementioning

confidence: 99%

Wear Modeling and Wear Mapping: A Review

2017

IJMTER

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Abstract-Researches on the wear of metals have brought new understanding and advanced major concepts of tribology. The availability of new testing methods and instruments have made possible the detailed study of the microstructure, nanostructure, and compositions of contact surfaces. Earlier work was concentrated on the mechanics of solid contact, understanding the true area of contact, asperity plasticity, and transfer during sliding. The scanning electron microscope and the atomic force microscope have provided fascinating insights and detailed information on surface structure. There have also been developments in computational modelling of wear by finite element methods, molecular dynamics, and fracture mechanics. Many wear models and equations in the literature have been developed. No single predictive equation or group of limited equations have been found for general and practical use. Various regimes of mechanical and corrosive wear for any particular pair of rubbing materials can be shown on a single wear map plotted on axes of normalised pressure and sliding velocity. In principle the map can be divided into areas corresponding to different wear regimes, with boundaries of sliding speed and contact pressure beyond which a purely mechanical view of wear would be grossly in error, owing to the effects of oxidation.

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“…The regime criteria is an adaption of criteria used in previous work [13][14]. The resulting map can be seen in Fig.…”

Section: Mechanism Mapmentioning

confidence: 99%

“…Such effects are important to characterize because micro-abrasion in bio-medical and industrial applications typically occurs in corrosive solutions in which the pH and electrochemical potential may vary significantly [2][3][4][5][6]. Understanding the combined effects of the tribological and corrosion variables, for micro-abrasion-corrosion, as in sliding wearcorrosion [14], is critically important for optimizing materials selection and tribocorrosion parameters in such conditions. For WC cermet based coatings, whilst the high hardness property of the WC is well understood, it is also recognized that the hard carbides fail to show good fatigue life on their own and thus the need for mixing them with binders in metal matrice structures arises.…”

Section: Introductionmentioning

confidence: 99%

Micro-abrasion–corrosion interactions of Ni–Cr/WC based coatings: Approaches to construction of tribo-corrosion maps for the abrasion–corrosion synergism

Stack

Mathew

Hodge

2011

Electrochimica Acta

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This version is available at https://strathprints.strath.ac.uk/27188/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. Micro-abrasion-corrosion interactions of AbstractThe process of micro-abrasion-corrosion has been the subject of much research in recent years due to the fact that the action of micron sized particles, typically less than 10 um in diameter, can cause significant degradation of materials in many diverse environments involving aqueous corrosion. Cermet based coatings are often used to combat microabrasion-corrosion, but has been little work carried out to characterize the performance of such coatings exposed to micro-abrasion-corrosion or to provide a basis for coating optimisation. In addition, a basis for defining the various micro-abrasion-corrosion interactions has not been suggested to date.In this study the micro-abrasion-corrosion performance of a Ni-Cr/WC coating was assessed and compared to the performance of the steel substrate. The results were used to identify regimes of micro-abrasion as a function of applied load and pH of the solution.In addition, micro-abrasion-corrosion maps were constructed based on the results,showing the variation between micro-abrasion-corrosion regimes, as a function of applied load and pH of the solution.

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Mapping sliding wear of steels in aqueous conditions

Cited by 50 publications

References 16 publications

Tribocorrosion behaviour of TiC O thin films in bio-fluids

Tribocorrosion behaviour of TiC O thin films in bio-fluids

Wear Modeling and Wear Mapping: A Review

Micro-abrasion–corrosion interactions of Ni–Cr/WC based coatings: Approaches to construction of tribo-corrosion maps for the abrasion–corrosion synergism

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