The influence of polydiethylsiloxane (PDES) concentration on the tribolfilm of chlorophenyl silicone oil (CPSO) under high-temperature lubrication

Yan Meng; Luo Yue; Xiangli Wen; Peng Wei; Xue Zhou; Jie Cheng; Pengpeng Bai; Qian Zhao; Yonggang Meng; Yu Tian

Journal of Materials Research and Technology (Mar 2024)

The influence of polydiethylsiloxane (PDES) concentration on the tribolfilm of chlorophenyl silicone oil (CPSO) under high-temperature lubrication

Yan Meng,
Luo Yue,
Xiangli Wen,
Peng Wei,
Xue Zhou,
Jie Cheng,
Pengpeng Bai,
Qian Zhao,
Yonggang Meng,
Yu Tian

Affiliations

Yan Meng: School of Mechanical and Electrical Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China; Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China
Luo Yue: Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China
Xiangli Wen: Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou, 225127, Jiangsu, China
Peng Wei: Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China
Xue Zhou: Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China
Jie Cheng: School of Mechanical and Electrical Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China; Corresponding author.
Pengpeng Bai: Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China
Qian Zhao: Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China
Yonggang Meng: Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China
Yu Tian: Department of Mechanical Engineering, State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing, 100084, China; Corresponding author.

Journal volume & issue: Vol. 29
pp. 1557 – 1564

Abstract

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As pivotal structural component, steels operating at high temperatures play a vital role in promoting the development of advanced equipment technology. Enduring and efficient lubricants are critical bottleneck for the construction of high-temperature frictional subsystems. Polydiethylsiloxane oil (PDES) significantly reduces the coefficient of friction (COF) (9.80–16.74 %) and wear rate (28.95–54.59 %) in the Si3N4–8Cr4Mo4V system without sulfur and phosphorus anti-wear additives at 250 °C. With only 1 wt% PDES, there is a remarkable 28.95 % wear rate reduction in the Si3N4–8Cr4Mo4V frictional system. The enhanced lubrication performance come from the Si–O tribofilm at lower PDES concentrations (1–15 wt%). Once exceeding a PDES concentration of 30 wt%, the as-formed Si–O tribofilm transitions to a Fe–Mo compound film, exhibiting superior friction reduction and wear resistance properties.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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