Influence of electrochemical potential on the wear of metals, particularly nickel

Pearson, B.R.; Brook, P.A.; Waterhouse, R.B.

doi:10.1016/0301-679x(88)90016-3

Cited by 15 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the 1980s attention focussed on the effect of applied potential on wear and the transition from adhesive wear at negative applied potentials to oxidative wear when positive potentials were applied to promote oxide formation [41,[56][57][58][59][60][61].…”

Section: Research On Aqueous Systemsmentioning

confidence: 99%

“…Throughout the 1980s several studies were made of the influence of applied potential on the oxidative wear of metals, generally with the aim of reducing this type of wear in both sliding and fretting conditions, though sometimes, for example in electrolytic grinding, of increasing the rate of material removal. The work, which has been summarised by Pearson, demonstrated that as the applied potential is increased from a highly negative value, initially an oxide film forms, which may be a passivating layer but may be removed mechanically, accelerating wear rate [61]. Pearson concluded that applied electrode potentials could provide cathodic protection, eliminating corrosion and some fretting wear, but he also noted the undesirability of applying such negative potentials as to cause hydrogen evolution which might promote embrittlement.…”

Section: Redox Reactions Promoting or Removing Metal Oxidesmentioning

confidence: 99%

See 1 more Smart Citation

Triboelectrochemistry: Influence of Applied Electrical Potentials on Friction and Wear of Lubricated Contacts

Spikes

2020

Tribol Lett

View full text Add to dashboard Cite

Research on the effects of applied electrical potential on friction and wear, a topic sometimes termed “Triboelectrochemistry”, has been reviewed. Historically, most such research has focussed on aqueous lubricants, whose relatively high electrical conductivities enable use of three-electrode electrochemical kinetic techniques, in which the electrode potential at a single electrode | fluid interface is controlled relative to a suitable reference electrode. This has led to identification of several different mechanisms by which applied electrode potentials can influence friction and wear. Of these, the most practically important are: (i) promotion of adsorption/desorption of polar additives on tribological surfaces by controlling the latters’ surface charges; (ii) stimulation or suppression of redox reactions involving either oxygen or lubricant additives at tribological surfaces. In recent years, there has been growing interest in the effects of applied electrical potentials on rubbing contacts lubricated by non-aqueous lubricants, such as ester- and hydrocarbon-based oils. Two different approaches have been used to study this. In one, a DC potential difference in the mV to V range is applied directly across a thin film, lubricated contact to form a pair of electrode | fluid interfaces. This has been found to promote some additive reactions and to influence friction and wear. However, little systematic exploration has been reported of the underlying processes and generally the electrode potentials at the interfaces have not been well defined. The second approach is to increase the conductivity of non-aqueous lubricants by adding secondary electrolytes and/or using micro/nanoscale electrodes, to enable the use of three-electrode electrochemical methods at single metal | fluid interfaces, with reference and counter electrodes. A recent development has been the introduction of ionic liquids as both base fluids and lubricant additives. These have relatively high electrical conductivities, allowing control of applied electrode potentials of individual metal | fluid interfaces, again with reference and counter electrodes. The broadening use of “green”, aqueous-based lubricants also enlarges the possible future scope of applied electrode potentials in tribology. From research to date, there would appear to be considerable opportunities for using applied electrical potentials both to promote desirable and to supress unwanted lubricant interactions with rubbing surfaces, thereby improving the tribological performance of lubricated machine components. Graphical Abstract

show abstract

Section: Research On Aqueous Systemsmentioning

confidence: 99%

Section: Redox Reactions Promoting or Removing Metal Oxidesmentioning

confidence: 99%

Triboelectrochemistry: Influence of Applied Electrical Potentials on Friction and Wear of Lubricated Contacts

Spikes

2020

Tribol Lett

View full text Add to dashboard Cite

show abstract

“…However, engineering metal materials are prone to electrochemical oxidation at high potentials, consequently altering interfacial friction behavior. In 1988, Pearson et al [47] discovered that suitable overpotentials could foster oxide film formation on metal surfaces, specifically nickel and alloy steel in NaClO 4 solution. However, the friction effect can disrupt the oxide film and expedite wear.…”

Section: Surface Oxide Filmmentioning

confidence: 99%

A Review of Electric Potential-Controlled Boundary Lubrication

Li,

Liu,

et al. 2023

Lubricants

View full text Add to dashboard Cite

Tribotronics represents the modulation of friction via an external electric potential, a field with promising ramifications for intelligent devices, precision manufacturing, and biomedical applications. A profound elucidation of mechanisms that allow for potential-controlled friction is foundational to further research in this tribotronic domain. This article provides a comprehensive review of the research progress in electro-controlled friction over the past few decades, approached from the perspective of the boundary lubrication film at the friction interface, a direct influencer of electro-controlled friction performance. The mechanisms of potential-controlled friction are categorized into three distinct classifications, contingent on the formation mode of the boundary lubrication film: potential-induced interfacial redox reactions, interfacial physical adsorption, and interfacial phase structure transformations. Furthermore, an outlook on the application prospects of electro-controlled friction is provided. Finally, several research directions worth exploring in the field of electro-controlled friction are proposed. The authors hope that this article will further promote the application of electro-controlled friction technology in engineering and provide intellectual inspiration for related researchers.

show abstract

“…Impressed potential on metal surface, pH of the media and the working parameters (contact pressure, etc.) affecting friction or lubrication state have significant effects on friction and wear behavior [6][7][8][9][10]. The physical and chemical properties of surface films and their tribological characteristics in an aqueous tribo-system can be controlled using electrochemical methods [7,[11][12][13].…”

Section: Tribo-electrochemistry In Aqueous Mediamentioning

confidence: 99%

Research progress in tribo-electrochemistry and tribo-electrochemical polishing

Zhai

2007

Front. Mech. Eng. China

View full text Add to dashboard Cite

In this paper, the status quo and recent progress in the research on tribo-electrochemistry in aqueous and non-aqueous media, respectively, are reviewed. Much more attention has been paid to the tribo-electrochemical mechanisms for the control of friction and wear. Based on a summary of the conventional polishing principles of hard and brittle materials, the tribo-electrochemical polishing method is proposed. The results of the preliminary test show that tribo-electrochemical polishing is promising to become a critical technology in the high efficient polishing and planarization of microelectronic materials.

show abstract

Influence of electrochemical potential on the wear of metals, particularly nickel

Cited by 15 publications

References 7 publications

Triboelectrochemistry: Influence of Applied Electrical Potentials on Friction and Wear of Lubricated Contacts

Triboelectrochemistry: Influence of Applied Electrical Potentials on Friction and Wear of Lubricated Contacts

A Review of Electric Potential-Controlled Boundary Lubrication

Research progress in tribo-electrochemistry and tribo-electrochemical polishing

Contact Info

Product

Resources

About