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Effect of Temperature and Load on Tribological Behavior in Laser-Cladded FeCrSiNiCoC Coatings.

ABSTRACT: The FeCrSiNiCoC coatings with fine macroscopic morphology and uniform microstructure were made on 1Cr11Ni heat resistant steel substrate by a laser-based cladding technique. The coating consists of dendritic γ-Fe and eutectic Fe-Cr intermetallic with an average microhardness of 467 HV_0.5 ± 22.6 HV_0.5. At the load of 200 N, the average friction coefficient of the coating dropped as temperature increased, while the wear rate decreased and then increased. The wear mechanism of the coating changed from abrasive wear, adhesive wear and oxidative wear to oxidative wear and three-body wear. Apart from an elevation in wear rate with increasing load, the mean friction coefficient of the coating hardly changed at 500 °C. Due to the coating's transition from adhesive wear and oxidative wear to three-body wear and abrasive wear, the underlying wear mechanism also shifted.

SUBMITTER: Long H

PROVIDER: S-EPMC10141079 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

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Effect of Temperature and Load on Tribological Behavior in Laser-Cladded FeCrSiNiCoC Coatings.

Long Haiyang H Hao Wei W Ma Rucheng R Gui Yongliang Y Song Chunyan C Qin Tieyu T Zhang Xuefeng X

Materials (Basel, Switzerland) 20230421 8

The FeCrSiNiCoC coatings with fine macroscopic morphology and uniform microstructure were made on 1Cr11Ni heat resistant steel substrate by a laser-based cladding technique. The coating consists of dendritic γ-Fe and eutectic Fe-Cr intermetallic with an average microhardness of 467 HV<sub>0.5</sub> ± 22.6 HV<sub>0.5</sub>. At the load of 200 N, the average friction coefficient of the coating dropped as temperature increased, while the wear rate decreased and then increased. The wear mechanism of ...[more]

PMID: 37110100

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