Effect of MoS2 content on anti-friction and wear-resistance of nickel-based alloy cladding layer

NiCrAl/20%WC/MoS 2 composite coatings with different MoS 2 additions were prepared on the surface of 45 steel by laser cladding technology. The effects of MoS 2 content on the microstructure, hardness and antifriction and wear resistance of the cladding layer were mainly studied. The results show th...

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Bibliographic Details
Published in:Ferroelectrics 2023-04, Vol.607 (1), p.117-125
Main Authors: Zhai, Fangyi, He, Binfeng, Mi, Guofa
Format: Article
Language:English
Subjects:
anti-friction and wear-resistance
Antifriction
Coefficient of friction
Friction
Hardness
Laser beam cladding
Laser cladding
Medium carbon steels
Microstructure
Molybdenum disulfide
Ni-based composite coating
Nickel
Nickel base alloys
Substrates
Tungsten carbide
Wear resistance
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Summary:NiCrAl/20%WC/MoS 2 composite coatings with different MoS 2 additions were prepared on the surface of 45 steel by laser cladding technology. The effects of MoS 2 content on the microstructure, hardness and antifriction and wear resistance of the cladding layer were mainly studied. The results show that the content of lubricating phase has a certain influence on the hardness, anti-friction and wear resistance. With the increase of MoS 2 content, the microstructure is gradually refined; the hardness gradually increases; the friction coefficient first decreases and then increases, and when the MoS 2 content is 5%, the friction coefficient is at least 0.55; the wear volume first decreases and then increases, and the MoS 2 addition amount is 5% When the wear volume is the smallest, the wear resistance is increased by 79% compared with the 45 steel substrate. Comprehensive analysis shows that the optimum addition amount of MoS 2 is 5%.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2023.2198379