Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effect of Heat Treatment on the Microstructure and Mechanical Properties of Plasma Cladded CoCrFeNiMn Coatings on Compacted Graphite Iron

Bo Zhang
,
Rui-Tao Fu
,
Pei-Hu Gao
* ORCID logo ,
Bai-Yang Chen
,
Anton Naumov
ORCID logo ,
Fei Li
,
Da-Ming Zhao
,
Zhong Yang
,
Yong-Chun Guo
,
Jian-Ping Li
* ,
Lei Chen
,
Jin-Yuan Gong
,
Jiawei Liu
,
Yu Li
Version 1 : Received: 22 February 2024 / Approved: 22 February 2024 / Online: 23 February 2024 (10:32:46 CET)

A peer-reviewed article of this Preprint also exists.

Zhang, B.; Fu, R.; Gao, P.; Chen, B.; Naumov, A.; Li, F.; Zhao, D.; Yang, Z.; Guo, Y.; Li, J.; Cheng, L.; Gong, J.; Liu, J.; Li, Y. The Effect of Heat Treatment on the Microstructure and Mechanical Properties of Plasma-Cladded CoCrFeNiMn Coatings on Compacted Graphite Iron. Coatings 2024, 14, 374. Zhang, B.; Fu, R.; Gao, P.; Chen, B.; Naumov, A.; Li, F.; Zhao, D.; Yang, Z.; Guo, Y.; Li, J.; Cheng, L.; Gong, J.; Liu, J.; Li, Y. The Effect of Heat Treatment on the Microstructure and Mechanical Properties of Plasma-Cladded CoCrFeNiMn Coatings on Compacted Graphite Iron. Coatings 2024, 14, 374.

Abstract

CoCrFeNiMn high-entropy alloy coatings were prepared on compacted graphite iron（CGI） through plasma cladding to strength the CGI substrate. The effects of heat treatment temperatures and times on the microstructure and mechanical properties of the CoCrFeNiMn coatings were investigated. After heat treatment, a single FCC phase was remained in the coating as compared to the deposited one, with smaller dendrites, larger dendritic spacing and more Cr-rich compounds precipitated between dendrites. The coatings’ microhardness was increased after heat treatment. After heat treated at 660°C for 90 minutes, the coating had the highest microhardness of 563±6.9 HV0.2, the lowest frictional coefficient of 0.71 and the smallest wear mass loss of 1.12 mg, and it had the best wear resistance.

Keywords

high entropy alloy; coating; heat treatment; microstructure; mechanical property

Subject

Engineering, Metallurgy and Metallurgical Engineering

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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