Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Microstructure and Properties of FeAlC-x(WC-Co) Composite Coating Prepared through Plasma Transfer Arc Cladding

Bai-Yang Chen
,
Bo Zhang
,
Daming Zhao
,
Peihu Gao
* ORCID logo ,
Anton Naumov
ORCID logo ,
Qi-bao Li
,
Fei Li
,
Zhong Yang
,
Yongchun Guo
,
Jian-Ping Li
* ,
Bao-Long Wu
,
Jin-Yuan Gong
,
Jia-Wei Liu
Version 1 : Received: 16 December 2023 / Approved: 18 December 2023 / Online: 18 December 2023 (12:19:28 CET)

A peer-reviewed article of this Preprint also exists.

Chen, B.; Zhang, B.; Zhao, D.; Gao, P.; Naumov, A.; Li, Q.; Li, F.; Yang, Z.; Guo, Y.; Li, J.; Wu, B.; Gong, J.; Liu, J. Microstructure and Properties of FeAlC-x(WC-Co) Composite Coating Prepared through Plasma Transfer Arc Cladding. Coatings 2024, 14, 128. Chen, B.; Zhang, B.; Zhao, D.; Gao, P.; Naumov, A.; Li, Q.; Li, F.; Yang, Z.; Guo, Y.; Li, J.; Wu, B.; Gong, J.; Liu, J. Microstructure and Properties of FeAlC-x(WC-Co) Composite Coating Prepared through Plasma Transfer Arc Cladding. Coatings 2024, 14, 128.

Abstract

Tungsten carbide (WC) was well known as a wear-resistant material. Iron-based pow-der was suitable for remanufacturing of cast iron engine parts. To improve the wear resistance of the remanufactured iron-based cast iron engine parts, WC-Co was intro-duced into iron-based powders to prepare composite coatings for cast iron engine components. In this work, FeAlC-x(WC-Co) composite coatings were prepared by plasma transfer arc on compacted graphite cast iron. The influences of WC-Co con-tents in the Fe-AlC-x(WC-Co) composite coatings on the microstructure and properties of the composite coatings were investigated. The composite coatings contained γ-Fe, α-Fe, WC and Fe3W3C mainly. The microhardness of FeAlC-x(WC-Co) composite coatings had the highest hardness of 814 HV0.2, the-lowest coefficient of 0.5 and the lest wear mass loss of 1.3mg when the weight content of WC-Co in the composite coating was 20wt%. As compared with the FeAlC coating, FeAlC-x(WC-Co) composite coating achieved the effect of reducing friction and wear resistance simultaneously, which resulted from the self-lubricating effect of graphite and high wear-resistance of carbides in the claddings.

Keywords

plasma cladding; coating; compacted graphite cast iron; wear resistance

Subject

Chemistry and Materials Science, Surfaces, Coatings and Films

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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