Methodology Development for Investigation of Slurry Abrasion Corrosion by Integrating an Electrochemical Cell to a Miller Tester

Wang, Sheng-Hui; Jiang, Jiaren; Stack, Margaret

doi:10.1007/s40735-015-0009-9

Cited by 7 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the shape of grains for the two sand types is different: Ottawa sand grains are rounded (Wang et al, 2015) while the Fontainebleau sand grains are angular (Montaron and Han, 2009). We hypothesise that the effective shear plane in Fontainebleau samples is located further away from the mineral surface, thus making the measured apparent zeta potential smaller in magnitude compared with Ottawa samples (see also arguments presented by AlRoudhan et al, 2016).…”

Section: Effect Of Grain Sizementioning

confidence: 99%

Zeta potential in sandpacks: Effect of temperature, electrolyte pH, ionic strength and divalent cations

Vinogradov

Jackson

Chamerois

2018

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

Rocks in many subsurface settings are at elevated temperature and are saturated with brines of high ionic strength (high salinity) containing divalent ions. Yet most laboratory measurements of zeta potential in earth materials are obtained at room temperature using simple monovalent electrolytes at low ionic strength. Consequently, the zeta potential at conditions relevant to many subsurface settings is not known. We report experimental measurements of the temperature dependence of the zeta potential in well characterised, natural quartz sandpacks over the temperature range 23-120°C saturated with electrolytes containing divalent ions at a range of concentrations relevant to natural systems. We find that the key control on zeta potential in these unbuffered experiments is pH, which varies in response to temperature and electrolyte composition. The zeta potential is negative irrespective of sample or electrolyte, but its magnitude is strongly correlated to pH, which varies both with temperature and the concentration of divalent ions. The pH decreases with increasing temperature at low ionic strength, but is independent of temperature at high ionic strength. The pH is also typically lower in the presence of divalent ions, irrespective of the total ionic strength. The zeta potential increases in magnitude with increasing pH. Different relationships between zeta potential, temperature and concentration of divalent ions could be obtained in buffered experiments where the pH is fixed at a given value. Zeta potential in sandpacks: effect of temperature, electrolyte pH, ionic strength and divalent cations.

show abstract

Section: Effect Of Grain Sizementioning

confidence: 99%

Zeta potential in sandpacks: Effect of temperature, electrolyte pH, ionic strength and divalent cations

Vinogradov

Jackson

Chamerois

2018

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

show abstract

“…E-C was studied under various conditions on many materials such as steel, AISI 420 stainless steel, AISI 1020 carbon steel, cast iron, aluminum, and copper alloys [23][24][25][26]. The previous researchers found that the material loss due to E-C is mainly affected by experiment duration, slurry flow velocity, impacting angle, erodent particle size, and solid particles concentration [27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

“…However, the available literature showed a lack of research on the effect of ECAP on the surface properties and E-C resistance of pure copper. The effect of the slurry velocity on ECAPed copper was studied previously [24]. The aim of the current work is to investigate the ECAP effects on the E-C resistance of copper under various conditions.…”

Section: Introductionmentioning

confidence: 99%

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

et al. 2017

View full text Add to dashboard Cite

Abstract:During the past few decades, ultrafine-grained materials (UFG) have experienced rapid development. Enhanced mechanical and surface properties, such as strength, ductility and erosioncorrosion (E-C) resistance by refining the grain to ultra-fine/nanometer size has been achieved. The equal channel angular pressing (ECAP) is a popular severe plastic deformation (SPD) method to fabricate UFG bulk materials. In this research, the E-C behavior of commercial annealed pure copper subject to four passes of ECAP have been investigated. Hardness measurement of the copper specimen after four passes of ECAP showed an increase of 200% on the hardness value as compared with annealed condition. Simulated seawater was used as an E-C medium. The effect of different E-C parameters such as time, slurry flow velocity, impact angle, and solid particle concentration on ECAP process is studied. The results showed that ECAP enhances the E-C resistance of copper, and this behavior improves with increasing the pass number. Generally, a 30% rise in resistance to E-C was achieved after four ECAP passes as compared to coarse grain copper for the parameters studied in this work. Optical microscopy was used to examine the microstructure and material removal mechanism of the annealed copper. Scanning electron microscopy (SEM) was used to validate the reduction of grain size due to ECAP process. Furthermore, examination of the surface roughness of the copper at different ECAP passes showed that for the same E-C condition the increment of ECAP passes leads to a smoother surface.

show abstract

“…Tribocorrosion is a complex material degradation process due to the combined effect of chemical reaction (corrosion) and mechanical contact (wear). Extensive studies have been conducted on tribocorrosion in both abrasion [1][2][3][4][5][6][7][8][9] and erosion conditions. In many cases, the total material loss due to combined corrosion and wear attack has been found to be greater, and often much greater, than the simple addition of losses from corrosion and wear if each acted independently.…”

Section: Introductionmentioning

confidence: 99%

Some thoughts on modelling abrasion-corrosion: wear by hard particles in corrosive environments

Jiang,

Islam,

Xie

et al. 2023

Preprint

View full text Add to dashboard Cite

Wear by hard particles can involve abrasion or erosion and is one of the most severe forms of wear. When a corrosive environment is present, the material loss rate can be significantly increased due to interactions (synergy) between the mechanical and chemical/electrochemical actions. In developing strategies for mitigating such adverse synergistic effect, it is important to understand the complex effect of various parameters on material loss under given tribocorrosion conditions. In this paper, a model is presented for wear-corrosion synergy in abrasive wear by hard particles applicable to many conditions in both the marine renewable (abrasion by high concentrations of large sand particles on tidal turbines) and extractive metallurgy (abrasive wear in mineral extraction). The mechanical wear loss is modeled based on the grooving mechanism (micro-cutting/micro-ploughing). Wear-enhanced corrosion is calculated from the fresh surface areas generated by grooving and the corresponding transient corrosion current. The concept of “corrosion-degraded layer” on the worn surface is introduced to account for the corrosion-enhanced wear; within this corrosion-degraded layer, the material loss rate is higher under the same mechanical wear conditions than in the material that is unaffected by corrosion. Based on the model, the effect of wear conditions on synergy in hard particle wear-corrosion has been discussed. The relative thickness of the corrosion-degraded layer to the depth of hard particle penetration (grooving) in the mechanical wear is found to be an important parameter in determining the relative severity of synergy in different tribo-corrosion systems. Good qualitative agreement has been observed between the predictions and published experimental results obtained from a range of abrasion-corrosion and erosion-corrosion lab testing.

show abstract

Methodology Development for Investigation of Slurry Abrasion Corrosion by Integrating an Electrochemical Cell to a Miller Tester

Cited by 7 publications

References 30 publications

Zeta potential in sandpacks: Effect of temperature, electrolyte pH, ionic strength and divalent cations

Zeta potential in sandpacks: Effect of temperature, electrolyte pH, ionic strength and divalent cations

Effect of Equal Channel Angular Pressing (ECAP) on Erosion-Corrosion of Pure Copper

Some thoughts on modelling abrasion-corrosion: wear by hard particles in corrosive environments

Contact Info

Product

Resources

About