Effect of pH on the Tribological Behavior of Eu-Doped WO3 Nanoparticle in Water-Based Fluid

2020 ◽  
Vol 68 (4) ◽  
Author(s):  
Sang Xiong ◽  
Dong Liang ◽  
Fanxin Kong
Keyword(s):  
Tribological Behavior ◽  
Effect Of Ph ◽  
Water Based

Study of the tribological behavior of S-(carboxylpropyl)-N-dialkyl dithiocarbamic acid as additives in water-based fluid

Wear ◽  
2002 ◽  
Vol 252 (3-4) ◽  
pp. 306-310 ◽  
Author(s):  
Weijiu Huang ◽  
Junxiu Dong ◽  
Fenfang Li ◽  
Boshui Chen
Keyword(s):  
Tribological Behavior ◽  
Water Based ◽  
Dithiocarbamic Acid

Study on the Lubricating Performance of Nano-TiO2 in Water-Based Cold Rolling Fluid

2015 ◽  
Vol 817 ◽  
pp. 219-224 ◽  
Author(s):  
Jian Lin Sun ◽  
Zuo Xin Zhu ◽  
Peng Fei Xu
Keyword(s):  
Cold Rolling ◽  
Tribological Behavior ◽  
Work Piece ◽  
Wear Properties ◽  
Laser Confocal Microscopy ◽  
Water Based ◽  
Rolling Experiment ◽  
Steel Balls ◽  
Rolled Surface ◽  
Lubricant Performance

A type of water-based cold rolling fluid has been developed by adding TiO2 nanoparticles. The tribological behavior of nanoTiO2 water-based rolling fluid was investigated by using four-ball machine. The worn surfaces of the steel balls were analyzed by using OLYMPUS laser confocal microscopy. Results indicate that nanoTiO2 nanoparticles significantly improved the anti-wear properties in the way of micro-ball bearing and perfecting the tribological behavior of water-based rolling fluid. The cold rolling experiment shows that the nanoTiO2 water-based rolling fluid had a good rolling lubricant performance under the condition of concentration of 0.7wt.% for the upper limit. The nanoTiO2 water-based rolling fluid can not only decrease the minimum rolling gauge and the surface roughness of the work piece, but also prevent direct contact between roller and work piece which could lead to the rolled surface scratches and adhesion defects.

Study of Relationship Between Structure of the Organic Aliphatic Acid and Rust-Inhibiting and Tribological Behavior in the Water-Based Cutting Fluid

2005 ◽  
Author(s):  
Haizhen Jiang ◽  
Dehua Tao ◽  
Bin Wang
Keyword(s):  
Chemical Structure ◽  
Alkyl Chain ◽  
Tribological Behavior ◽  
Cutting Fluid ◽  
Aliphatic Acid ◽  
Metal Wear ◽  
Wear And Friction ◽  
Water Based ◽  
Inhibiting Property ◽  
Better Than

Effect of chemical structure of the aliphatic acid on rust-inhibiting properties and tribological behaviors of the water-based cutting fluid was studied in systematically. It was obtained that (1) the rust-inhibiting property became better with increase of the length of alkyl-chain of the aliphatic acid salts of triethanolamine. (2) The rust-inhibiting property of the aliphatic binary acid triethanolamine salts was better than that of the aliphatic monoacid triethanolamine salts. But the tribological behavior of the aliphatic monoacid triethanolamine salts was favor. Compared with base water, anti-wear and friction-reducing abilities of the soluble aliphatic acid triethanolamine salts would be improved greatly. (3) The adsorption and tribo-reaction films on the metal wear scar surface were monitored by auger energy spectrum.

Potential Controlled Tribological Behavior of Water-Based Ionic Liquids

2016 ◽  
Vol 674 ◽  
pp. 250-256 ◽  
Author(s):  
Tobias Amann ◽  
Christian Dold ◽  
Andreas Kailer
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Friction And Wear ◽  
Tribological Behavior ◽  
Liquid Mixtures ◽  
Resource Conservation ◽  
Water Based ◽  
Electric Potentials ◽  
Cooling Lubricant ◽  
Disk Test

Increase of energy efficiency, reliability and durability of technical systems in combination with resource conservation using environmentally friendly water-based lubricants would be an overarching goal in all tribological applications. According to this aim the objective of this work is to investigate and identify new water-based lubricants containing ionic liquids (ILs) to reduce friction and wear. Therefore the tribological behavior of different water-based ionic liquid mixtures, compared with a standard water based cooling lubricant emulsion, was studied using a ball-on-disk test. A three electrode setup was used to analyze the influence of different electric potentials. The results show that friction and wear can be improved by using ionic liquid. In addition, the tribological behavior can be strongly influenced by electric potentials. As tribological mechanism the attraction of cations and the formation of a triboactive layer is assumed, due to charging of the surface.

scholarly journals Effect of pH on Rheological and Filtration Properties of Water-Based Drilling Fluid Based on Bentonite

2019 ◽  
Vol 11 (23) ◽  
pp. 6714 ◽  
Author(s):  
Hany Gamal ◽  
Salaheldin Elkatatny ◽  
Salem Basfar ◽  
Abdulaziz Al-Majed
Keyword(s):  
Rheological Properties ◽  
Yield Point ◽  
Filter Cake ◽  
Drilling Fluid ◽  
Gel Strength ◽  
Plastic Viscosity ◽  
Effect Of Ph ◽  
Drilling Operation ◽  
Water Based ◽  
Filtration Properties

The design of drilling fluids is very important for the drilling operation success. The rheological properties play a key role in the performance of the drilling fluid. Therefore, studying the mud rheological properties of the water-based drilling fluid based on bentonite is essential. The main objectives of this study are to address the effect of pH changes on the rheological and filtration properties of the water-based drilling fluid based on bentonite and to provide a recommended pH range for this drilling fluid for a safe and high-performance drilling operation. Different samples of the water-based drilling fluid based on bentonite with different pH values were prepared, and the rheological properties such as plastic viscosity, yield point, and gel strength were measured. After that, the filtration test was performed under 300 psi differential pressure and 200 °F. The pH for the water-based drilling fluid based on bentonite significantly affects the mud rheology. The shear stress and shear rate relation were varying with the change in the pH. Increasing the pH from 8 to 12 resulted in decreasing the plastic viscosity by 53% and the yield point by 82%, respectively. The ratio of yield point / plastic viscosity was 1.4 for pH of 8 while it decreased to 0.5 for a pH of 11 and 12. There was a significant decrease in the gel strength readings by increasing the pH. The filtrate volume and filter cake thickness increased by increasing pH. The filtration volume increased from 9.5 cm3 to 12.6 cm3 by increasing the pH from 9 to 12. The filter cake thickness was 2 mm at 9 pH, while it was increased to 3.6 mm for 12 pH. It is recommended from the results to keep the pH of water-based drilling fluid based on bentonite in the range of 9 to 10 as it provides the optimum mud rheological and filtration properties. The findings of this study illustrated that keeping the pH in the range of 9 to 10 will reduce the plastic viscosity that will help in increasing the rate of penetration and reducing the required pump pressure to circulate the mud to the surface which will help to sustain the drilling operation. In addition, reducing the filtrate volume will produce a thin filter cake which will help in avoiding the pipe sticking and protect the environment. In general, optimizing the pH of the water-based drilling fluid based on bentonite in the range of 9 to 10 will improve the drilling operation and minimize the total cost.

Sign in / Sign up

Export Citation Format

Share Document