Tribological behaviors of water-based drilling mud with oleic acid-filled microcapsules as lubricant additives for steel-steel contact
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 27 March 2020
Issue publication date: 27 March 2020
Abstract
Purpose
The purpose of this paper is to study the tribology behavior of steel–steel contact under the lubrication of water-based drilling mud with different oleic acid-filled microcapsules as lubricant additives.
Design/methodology/approach
A ball-on-disc tribometer was used to evaluate the lubrication properties of the steel–steel contact. The wear tracks of the worn surfaces were observed by a scanning electron microscope.
Findings
Results show that the dependence of both friction and wear on the category of additives shares a consistent pattern. In contrast to oleic acid and empty microcapsules, oleic acid-filled microcapsules achieve the best tribological performance which is related to the lubricant effect of oleic acid and the isolation and rolling abilities of microcapsules.
Practical implications
This study provides a helpful method of encapsulated lubricant additives to prolong lubrication performance for steel–steel contact.
Originality/value
This study has applied microcapsules to improve the tribological properties of drilling mud.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0320/
Keywords
Acknowledgements
The authors acknowledge the support by National Natural Science Foundation of China (No. 51575529) and Tribology Science Fund of State Key Laboratory of Tribology (No. SKLTKF17B10).
Citation
Ji, M., Liu, S. and Xiao, H. (2020), "Tribological behaviors of water-based drilling mud with oleic acid-filled microcapsules as lubricant additives for steel-steel contact", Industrial Lubrication and Tribology, Vol. 72 No. 7, pp. 835-843. https://doi.org/10.1108/ILT-08-2019-0320
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited