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Tribological properties of lanthanum perrhenate as lubricating additive over a wide temperature range
Wang, Junhai1,2; Zhang, Lixiu1; Li, Ting1; Zhang, Ke1; Lu, Bing1
Corresponding AuthorWang, Junhai(jhwang10b@alum.imr.ac.cn)
2017
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume7Issue:59Pages:37447-37458
AbstractLanthanum perrhenate for use as a lubricating additive was prepared via the aqueous solution method in this study, and was dispersed into a pentaerythritol ester (PETE) base oil accompanied by surface active agents. The thermal stability of the complex oil with/without lanthanum perrhenate and surface active agents was evaluated by thermogravimetry. The influences of lanthanum perrhenate as a solid lubricating additive on the extreme pressure performance and friction-reducing property of the complex lubricants in a wide temperature range were investigated by four-ball tests and ball-on-disc frictional tests with a silicon nitride ball and Ni-base superalloy frictional pair. The results suggested that the added lanthanum perrhenate did not significantly affect the thermal stability and anti-oxidation properties of PETE, and improved the extreme pressure performance of the base oil. Additionally, it decreased the friction coefficient and wear scar diameter to a certain degree. The complex oil had a similar lubricating performance to the base oil below the decomposition temperature point; within the scope of 350 degrees C to 600 degrees C, the friction coefficients of oil containing the lanthanum perrhenate additive were markedly lower than that of the base oil, and this was attributed to lanthanum perrhenate's intrinsic shear susceptibility and resistance to phase transformation under high temperature conditions, enabling it to form an effective antifriction layer with native oxides of the superalloy matrix, thus reducing the friction in high-temperature environments.
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; State Key Laboratory of Tribology ; SJZU
DOI10.1039/c7ra05953a
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51175489] ; Natural Science Foundation of Liaoning Province[20170540740] ; State Key Laboratory of Tribology[SKLTKF16B07] ; SJZU[2017051]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000406705700071
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/124860
Collection中国科学院金属研究所
Corresponding AuthorWang, Junhai
Affiliation1.Shenyang Jianzhu Univ, Sch Mech Engn, 9 Hunnan East Rd, Shenyang 110168, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Wang, Junhai,Zhang, Lixiu,Li, Ting,et al. Tribological properties of lanthanum perrhenate as lubricating additive over a wide temperature range[J]. RSC ADVANCES,2017,7(59):37447-37458.
APA Wang, Junhai,Zhang, Lixiu,Li, Ting,Zhang, Ke,&Lu, Bing.(2017).Tribological properties of lanthanum perrhenate as lubricating additive over a wide temperature range.RSC ADVANCES,7(59),37447-37458.
MLA Wang, Junhai,et al."Tribological properties of lanthanum perrhenate as lubricating additive over a wide temperature range".RSC ADVANCES 7.59(2017):37447-37458.
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