Microstructure and properties of TiC-enhanced CrMnFeCoNi high-entropy alloy coatings prepared by laser cladding

Zhuang, Dongdong; Tao, Wang-Wang; Du, B. X.; Zhang, Shu-Hao; Lian, Xin-Long; Wang, Fei

doi:10.1016/j.triboint.2023.108246

Cited by 37 publications

(3 citation statements)

References 24 publications

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“…The collision friction occurred between the micro-convex bodies on the specimen surface, and the larger contact stress resulted in the fluctuation of the friction coefficient. With the progress of friction and wear, the protruding part was gradually worn down, the actual contact area increased, the friction factor tended to be stable, and it entered the stable break-in stage [ 2 ].…”

Section: Resultsmentioning

confidence: 99%

“…As a kind of comprehensive material, high entropy alloy has better physical and chemical properties than many common metal compounds [ 1 ]. Therefore, it has attracted wide attention in material science and engineering and is the focus field of scholars at home and abroad [ 2 , 3 ]. In recent years, many scholars at home and abroad have used high entropy alloys for surface modification, mainly by laser melting, laser deposition, and plasma melting.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Nano-CeO2 on Microstructure and Properties of WC/FeCoNiCrMo0.2 Composite High Entropy Alloy Coatings by Laser Cladding

et al. 2023

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FeCoNiCrMo0.2 high entropy alloy has many excellent properties, such as high strength, high wear resistance, high corrosion resistance, and high ductility. To further improve the properties of this coating, FeCoNiCrMo high entropy alloy (HEA) coatings, and two composite coatings, FeCoNiCrMo0.2 + WC and FeCoNiCrMo0.2 + WC + CeO2, were prepared on the surface of 316L stainless steel by laser cladding technology. After adding WC ceramic powder and CeO2 rare earth control, the microstructure, hardness, wear resistance, and corrosion resistance of the three coatings were carefully studied. The results show that WC powder significantly improved the hardness of the HEA coating and reduced the friction factor. The FeCoNiCrMo0.2 + 32%WC coating showed excellent mechanical properties, but the distribution of hard phase particles in the coating microstructure was uneven, resulting in unstable distribution of hardness and wear resistance in each region of the coating. After adding 2% nano-CeO2 rare earth oxide, although the hardness and friction factor decreased slightly compared with the FeCoNiCrMo0.2 + 32%WC coating, the coating grain structure was finer, which reduced the porosity and crack sensitivity of the coating, and the phase composition of the coating did not change; there was a uniform hardness distribution, a more stable friction coefficient, and the flattest wear morphology. In addition, under the same corrosive environment, the value of polarization impedance of the FeCoNiCrMo0.2 + 32%WC + 2%CeO2 coating was greater, the corrosion rate was relatively low, and the corrosion resistance was better. Therefore, based on various indexes, the FeCoNiCrMo0.2 + 32%WC + 2%CeO2 coating has the best comprehensive performance and can extend the service life of 316L workpieces.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Nano-CeO2 on Microstructure and Properties of WC/FeCoNiCrMo0.2 Composite High Entropy Alloy Coatings by Laser Cladding

et al. 2023

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“…The microhardness of the treated coating was also significantly improved (by about 2.22 times) relative to that of the initial coating, whereas the wear weight was only 14.3% of that of the untreated coating. Zhuang et al [23] used laser cladding to prepare TiC-reinforced CrMnFeCoNi coatings and investigate wear properties at room temperature and 873 K. Results indicate that TiC could significantly increase the microhardness of the coatings and thus improve wear resistance. Increasing TiC content at room temperature reduces the fluctuation of the coating friction coefficient.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of CoCrNi/Nano-TiC/Micro-TiB2 Composite Coatings Prepared via Laser Cladding

Liu,

Yu,

Wang

et al. 2023

Materials

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Laser cladding was used to prepare CoCrNi-xTiC-xTiB2 (x = 0, 5, 15 wt.%) composite coatings on 316L stainless steel. Then, ceramic mass fraction effects on the microstructure and properties were investigated. Results show viable metallurgical bonding between the coating and the substrate, with no apparent pores or cracks. The addition of ceramics transformed the coating phase from a single-phase face-centered cubic (FCC) to a multi-phase FCC+TiC+TiB2. TiC and TiB2 increased the hardness of the CoCrNi-xTiC-xTiB2 coating from 209.71 HV to 494.77 HV by grain refinement and diffusion strengthening. The substrate wear loss was 0.0088 g, whereas the CoCrNi-xTiC-xTiB2 (x = 15%) coating wear loss was only 0.0012 g. Moreover, the overall wear mechanism of the coating was changed: the substrate wear mechanism was used for abrasive wear, adhesive wear and fatigue wear, and the coating with the addition of 15 wt.% nano-TiC and 15 wt.% micro-TiB2 was the wear mechanism for pitting fatigue wear.

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Microhardness and Wear Rate Analysis on Laser Cladded Composites of AZ91D Alloy with SiC by Grey Technique

Karthick,

Loganathan,

Jagadish

et al. 2024

Lecture Notes in Mechanical Engineering

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Microstructure and properties of TiC-enhanced CrMnFeCoNi high-entropy alloy coatings prepared by laser cladding

Cited by 37 publications

References 24 publications

Effects of Nano-CeO2 on Microstructure and Properties of WC/FeCoNiCrMo0.2 Composite High Entropy Alloy Coatings by Laser Cladding

Effects of Nano-CeO2 on Microstructure and Properties of WC/FeCoNiCrMo0.2 Composite High Entropy Alloy Coatings by Laser Cladding

Microstructure and Properties of CoCrNi/Nano-TiC/Micro-TiB2 Composite Coatings Prepared via Laser Cladding

Microhardness and Wear Rate Analysis on Laser Cladded Composites of AZ91D Alloy with SiC by Grey Technique

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