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Task-Specific Oil-Miscible Ionic Liquids Lubricate Steel/Light Metal Alloy: A Tribochemistry Study
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements. State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou.
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou.
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou.
State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou.
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2018 (English)In: Advanced Materials Interfaces, ISSN 2196-7350Article in journal (Refereed) Epub ahead of print
Abstract [en]

In order to increase the solubility of ionic liquids in base oils and to improve the lubricating performance of light alloys, two new ionic liquids comprised of sulfonate base anion and phosphonium based cation are designed and synthesized. The difference between these two ionic liquids is the cation: One has only one organophosphate group (P88816DOSS) and the other has two organophosphate group (P888PDOSS). The copper strip corrosion test is used to evaluate the anticorrosion properties of new developed ionic liquids. Tribological properties of the ionic liquids are investigated by an optimal SRV-IV oscillating tribometer. The results indicate that the new designed ionic liquids show very good solubility in traditional mineral-based oils. P88816DOSS and P888PDOSS show excellent friction reduction, antiwear performance accompanied with effective anticorrosion properties for the mineral base oil. Surface analysis results show that the superior properties of P88816DOSS and P888PDOSS are attributed to surface chemical reactions between ionic liquids and light metal.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2018.
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
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URN: urn:nbn:se:ltu:diva-70209DOI: 10.1002/admi.201800791OAI: oai:DiVA.org:ltu-70209DiVA, id: diva2:1236814
Available from: 2018-08-06 Created: 2018-08-06 Last updated: 2018-08-15

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Yu, QiangliangShi, Yijun

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