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Anne Neville
University of Leeds
515Publications
39H-index
5,768Citations
Publications 515
Newest
Published on Mar 1, 2019in Applied Surface Science 4.44
Richard Barker13
Estimated H-index: 13
(University of Leeds),
I. Al Shaaili (University of Leeds)+ 4 AuthorsAnne Neville39
Estimated H-index: 39
(University of Leeds)
This work investigates the Corrosion Layer Accumulation Rate (CLAR) of iron carbonate (FeCO3) onto X65 carbon steel in carbon dioxide containing environments using the direct method of corrosion layer mass gain measurement. Glass cell experiments were performed at 80 °C and pH 6.3 or 6.8 over a range of bulk FeCO3 saturation ratios using both actively corroding carbon steel and steel pre-filmed with FeCO3. The CLARs obtained from experiments using actively corroding samples displayed strong agre...
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Published on Mar 1, 2019in Tribology International 3.25
Abdullah Azam (University of Leeds), Abdel Dorgham1
Estimated H-index: 1
(University of Leeds)
+ 2 AuthorsM.C.T. Wilson13
Estimated H-index: 13
(University of Leeds)
Most power transmitting components operate under mixed lubrication conditions. Concentrated pressures and smaller lubricant film thickness may cause surface and subsurface stresses to exceed the material yield limit causing permanent geometrical changes. A model was developed to include elastoplastic behaviour within a deterministic unified mixed lubrication framework. Model details are presented and the model is validated against published simulation data. A parametric study to address the effe...
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Published on Mar 1, 2019in Nanotechnology 3.40
Abdel Dorgham1
Estimated H-index: 1
,
Chun Wang7
Estimated H-index: 7
+ 1 AuthorsAnne Neville39
Estimated H-index: 39
Tribology: the science of friction, wear and lubrication has never been associated in a positive way with the ability to manufacture at the nanoscale. Triboreactivity, when the contact between two surfaces promotes a chemical reaction, has been harnessed in this study to create highly tenacious nano-features. The reported 3D tribo-nanoprinting methodology has been demonstrated for organic and inorganic fluids on steel and silicon substrates and is adaptable through the interface tribology. The g...
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Published on Mar 1, 2019in Powder Technology 3.23
Ali Ghanbarzadeh5
Estimated H-index: 5
,
Ali Hassanpour17
Estimated H-index: 17
,
Anne Neville39
Estimated H-index: 39
An in-house contact mechanics model is used to simulate contact of rough spheres having elastic-perfectly plastic contact with adhesion. The model uses a Boundary Element Method (BEM) and employs Fast Fourier Transforms (FFT) for numerical efficiency. We have validated our model for smooth surfaces with the Hertz contact behaviour in elastic regime, JKR adhesive model in the adhesive regime and Thornton and Ning's analytical model in elasto-plastic adhesive regime. Furthermore, the effect of yie...
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Published on Apr 1, 2019in Tribology International 3.25
Abdullah Azam , Ali Ghanbarzadeh5
Estimated H-index: 5
+ 2 AuthorsM.C.T. Wilson13
Estimated H-index: 13
Mixed lubrication is a contact condition when the total load is carried by both the fluid lubricant and the solid contacting asperities. The aim of this study is to couple tribochemistry with lubrication. A recent semi-deterministic tribochemical model of tribofilm growth is integrated in a deterministic mixed lubrication model. The model considers the variable hardness of the tribofilm and enables the study of lubrication and tribochemistry and their mutual interaction. Results from the current...
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Published on Dec 1, 2018in Tribology International 3.25
Abdel Dorgham1
Estimated H-index: 1
,
Pourya Parsaeian4
Estimated H-index: 4
+ 3 AuthorsAnne Neville39
Estimated H-index: 39
The reaction kinetics of zinc dialkyldithiophosphate (ZDDP) and ashless DDP antiwear additives were studied using in-situ single asperity AFM experiments. The results show that the ZDDP molecules decompose under high temperature and contact pressure following first order reaction kinetics (), whereas the DDP molecules follow a more complex fractional order (). The fractional order indicates that the decomposition process includes more side and intermediate reactions that consume part of the addi...
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Published on Dec 26, 2018in ACS Applied Materials & Interfaces 8.10
Abdel Dorgham1
Estimated H-index: 1
(University of Leeds),
Abdullah Azam (University of Leeds)+ 1 AuthorsAnne Neville39
Estimated H-index: 39
(University of Leeds)
Despite the ubiquitous use of the zinc dialkyldithiophosphate (ZDDP) as antiwear additive, no complete information is yet available on its exact decomposition reactions and kinetics to form triboreactive protective films on contacting surfaces. This hinders the replacement of ZDDP with more environmental friendly additives of similar antiwear capabilities. Using a multi-technique approach, this study shows that before the formation of a phosphate-rich protective film, the decomposition of ZDDP p...
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Published on Sep 1, 2018
Ra De Motte , Richard Barker13
Estimated H-index: 13
+ 2 AuthorsAnne Neville39
Estimated H-index: 39
In a carbon dioxide (CO₂) corrosive environment, when the product of the local concentrations of iron (Fe²⁺) and carbonate (CO₃²⁻) ions exceed the solubility limit, the precipitation of iron carbonate (FeCO₃) on the internal walls of carbon steel pipelines can significantly reduce the corrosion rate. In the following work, static glass cell corrosion experiments were conducted to understand the precipitation behavior in the early stages of FeCO₃ development and the factors favorable to protectiv...
Published on Nov 13, 2018in Langmuir 3.79
Dichu Xu (Zhejiang University), Chun Wang7
Estimated H-index: 7
(University of Leeds)
+ 3 AuthorsArdian Morina18
Estimated H-index: 18
(University of Leeds)
Among friction modifier lubricant additives, molybdenum dialkyldithiocarbamate (MoDTC) provides excellent friction behavior in boundary lubricated tribocontacts. It is well established that the low friction obtained with MoDTC is as a result of the formation of lattice structure MoS₂ nanosheets. However, the relationship between the molybdenum species quantity, its distribution on the contact surface, and the friction behavior is not yet fully understood. In this work, Raman microscopy and atomi...
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Published on Oct 11, 2018in Journal of Tribology-transactions of The Asme 1.79
Ali Ghanbarzadeh5
Estimated H-index: 5
(University of Leeds),
Farnaz Motamen Salehi (University of Leeds)+ 1 AuthorsAnne Neville39
Estimated H-index: 39
(University of Leeds)
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