Effect of deposition pressure on friction and wear properties of BWS2 composite coatings

Bowei Kang; Haichao Cai; Yujun Xue; Lulu Pei; Yongjian Yu

doi:10.1088/2053-1591/ad6666

Materials Research Express (Jan 2024)

Effect of deposition pressure on friction and wear properties of BWS2 composite coatings

Bowei Kang,
Haichao Cai,
Yujun Xue,
Lulu Pei,
Yongjian Yu

Affiliations

Bowei Kang: ORCiD; School of Mechatronics Engineering, Henan University of Science and Technology , Luoyang, 471003, People’s Republic of China; Henan Key Laboratory for Machinery Design and Transmission System, Luoyang, 471003, People’s Republic of China
Haichao Cai: School of Mechatronics Engineering, Henan University of Science and Technology , Luoyang, 471003, People’s Republic of China; Henan Key Laboratory for Machinery Design and Transmission System, Luoyang, 471003, People’s Republic of China; Collaborative Innovation Center of Henan Province for High-End Bearing, Henan University of Science and Technology , Luoyang, 471000, People’s Republic of China
Yujun Xue: School of Mechatronics Engineering, Henan University of Science and Technology , Luoyang, 471003, People’s Republic of China; Henan Key Laboratory for Machinery Design and Transmission System, Luoyang, 471003, People’s Republic of China; Collaborative Innovation Center of Henan Province for High-End Bearing, Henan University of Science and Technology , Luoyang, 471000, People’s Republic of China
Lulu Pei: ORCiD; School of Mechatronics Engineering, Henan University of Science and Technology , Luoyang, 471003, People’s Republic of China; Henan Key Laboratory for Machinery Design and Transmission System, Luoyang, 471003, People’s Republic of China; Collaborative Innovation Center of Henan Province for High-End Bearing, Henan University of Science and Technology , Luoyang, 471000, People’s Republic of China
Yongjian Yu: School of Mechatronics Engineering, Henan University of Science and Technology , Luoyang, 471003, People’s Republic of China; Henan Key Laboratory for Machinery Design and Transmission System, Luoyang, 471003, People’s Republic of China; Collaborative Innovation Center of Henan Province for High-End Bearing, Henan University of Science and Technology , Luoyang, 471000, People’s Republic of China; Longmen Laboratory, Luoyang, 471000, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/ad6666
Journal volume & issue: Vol. 11, no. 7
p. 076405

Abstract

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This study investigated the impact of deposition pressure on the microstructure and tribological properties of B/WS _2 composite coatings deposited via unbalanced magnetron sputtering. Deposition pressures of 0.6 Pa, 0.8 Pa, 1.0 Pa, 1.2 Pa, and 1.4 Pa were used during the deposition process. The microstructure and mechanical properties of the B/WS _2 composite coatings were characterized, and friction and wear experiments were conducted. The study found that the microhardness of the B/WS _2 composite coatings decreased as the deposition pressure increased. The highest hardness of the coating, reaching 8.1GPa, was observed at a deposition pressure of 0.6 Pa. This was due to the formation of Tungsten tetraborate (WB _4 ) during the deposition process, which had a high hardness and improved the mechanical properties of the coating. The wear life of the B/WS _2 composite coatings was at its best, reaching 9.9 × 10 ^4 cycles, and the friction coefficient was at its lowest when the deposition pressure was 1.2 Pa. Selecting an appropriate deposition pressure can improve the tribological properties of B/WS _2 composite coatings. Doping Boron can improve the hardness and wear resistance of the composite coatings. Abrasive wear and spalling are the two main wear forms of B/WS _2 composite coatings.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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