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.,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.,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.,This study provides a helpful method of encapsulated lubricant additives to prolong lubrication performance for steel–steel contact.,This study has applied microcapsules to improve the tribological properties of drilling mud.,The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2019-0320/

中文翻译：

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油酸微胶囊作为钢-钢接触润滑添加剂的水基钻井泥浆摩擦学行为

【摘要】：本文旨在研究以不同油酸微胶囊为润滑剂添加剂的水性钻井泥浆润滑下钢-钢接触的摩擦学行为。钢-钢接触的特性。通过扫描电子显微镜观察磨损表面的磨损轨迹。结果表明摩擦和磨损对添加剂类别的依赖性具有一致的模式。与油酸和空微胶囊相比，油酸填充微胶囊的摩擦学性能最好，这与油酸的润滑作用和微胶囊的隔离和滚动能力有关。