原子氧环境下辐照剂量对Ti:WS 2 /PFPE复合润滑体系结构和摩擦学性能的影响

IF 2 3区工程技术 Q2 ENGINEERING, MECHANICAL

Tribology Transactions Pub Date : 2023-10-18 DOI:10.1080/10402004.2023.2270652

Jian Liu, Zhen Yan, Junying Hao, Weimin Liu

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引用次数: 0

摘要

摘要采用比烃类润滑剂氧化稳定性更高的pfpe(全氟聚醚)油与Ti:WS2膜相结合，构建固液复合润滑体系。结果表明，原子氧(AO)辐照对Ti:WS2/PFPE复合润滑体系产生了重要影响。随着辐照剂量的增加，PFPE油的分子结构发生碳链断裂，并出现明显的分子交联和聚合。同时，Ti:WS2膜也被不同程度氧化生成WO3。固液体系的变化导致了Ti:WS2/PFPE体系摩擦学性能的巨大差异。系统摩擦系数在低剂量辐照下显著升高，而在高剂量AO下急剧下降，这与WO3的存在和形成的转移膜有关。最后，揭示了AO辐照下Ti:WS2/PFPE体系的失效机理。关键词:固液润滑pfpe油ao辐照摩擦学性能失效机制免责声明作为对作者和研究人员的服务，我们提供此版本的已接受稿件(AM)。在最终出版版本记录(VoR)之前，将对该手稿进行编辑、排版和审查。在制作和印前，可能会发现可能影响内容的错误，所有适用于期刊的法律免责声明也与这些版本有关。

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Effect of irradiation dose on the structure and tribological performance of Ti:WS ₂ /PFPE composite lubricating system in atomic oxygen environment

ABSTRACTPFPE (Perfluoropolyether) oil possessing higher oxidation stability than hydrocarbon lubricant is combined with Ti:WS2 film to construct solid-liquid composite lubricating system. The results indicate that atomic oxygen (AO) irradiation generates some important effects for the Ti:WS2/PFPE composite lubricating system. With increase of irradiation dose, the molecule structure of PFPE oil occurs to carbon chain breakage and appears the obvious molecule cross-linking and polymerization. Meanwhile, Ti:WS2 film also is oxidized to different extent to form WO3. The changes in solid-liquid system resulted in the greatly different tribological properties of Ti:WS2/PFPE system. The friction coefficient of the system significantly increases in low-dose irradiation, while the value inversely sharply decreases in high-dose AO, which is related to the presence of WO3 and formed transfer film. Finally, the failure mechanism of Ti:WS2/PFPE system under AO irradiation was revealed.KEYWORDS: Solid-liquid lubricationPFPE oilAO irradiationTribological performanceFailure mechanismDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also.

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来源期刊

Tribology Transactions 工程技术-工程：机械

CiteScore

3.90

自引率

4.80%

发文量

审稿时长

4 months

期刊介绍： Tribology Transactions contains experimental and theoretical papers on friction, wear, lubricants, lubrication, materials, machines and moving components, from the macro- to the nano-scale. The papers will be of interest to academic, industrial and government researchers and technologists working in many fields, including: Aerospace, Agriculture & Forest, Appliances, Automotive, Bearings, Biomedical Devices, Condition Monitoring, Engines, Gears, Industrial Engineering, Lubricants, Lubricant Additives, Magnetic Data Storage, Manufacturing, Marine, Materials, MEMs and NEMs, Mining, Power Generation, Metalworking Fluids, Seals, Surface Engineering and Testing and Analysis. All submitted manuscripts are subject to initial appraisal by the Editor-in-Chief and, if found suitable for further consideration, are submitted for peer review by independent, anonymous expert referees. All peer review in single blind and submission is online via ScholarOne Manuscripts.