Effect of WC content on microstructures and mechanical properties of FeCoCrNi high-entropy alloy/WC composite coatings by plasma cladding

Peng, Yujia; Zhang, Wei; Li, Tianchen; Zhang, Mingyang; Liu, Bin; Liu, Yong; Wang, Li; Hu, Songhao

doi:10.1016/j.surfcoat.2019.125326

Cited by 99 publications

(36 citation statements)

References 33 publications

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“…The die surface has to withstand substantial cyclic mechanical and thermal stress, adhesion and abrasion, as well as thermal dissolution in its service process, and is often failed by repeated thermal wear and thermal fatigue [ 3 , 4 , 5 ]. Therefore, advanced surface modifications are required before the die surface can be effectively applied in practice, such as electroplating, diffusion treatment, chemical vapor deposition, cold spray, and laser cladding [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. Advanced surface modification technologies can dramatically boost energy efficiency as well as improve product performance and quality [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…Advanced surface modification technologies can dramatically boost energy efficiency as well as improve product performance and quality [ 8 ]. Compared with other surface modification technologies, laser cladding shows great advantages in the preparation of the wear-resistance surface, as it can generate strong metallurgical bonding between cladding layers and substrate, and because of its low coating dilution rate and small thermal effect of substrate [ 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

“…According to the principle of dispersion strength, the strength and hardness of the simple solid solution phases could be improved further by the precipitated intermetallic compound phases. From the perspective of the dispersion strengthening mechanism, WC, TiC ceramic particles are commonly used as reinforcement phases in high-entropy alloys [ 10 , 12 , 23 ]. These granular-shaped precipitates can improve the microhardness and wear resistance of the coating.…”

Section: Introductionmentioning

confidence: 99%

“…These granular-shaped precipitates can improve the microhardness and wear resistance of the coating. Unfortunately, it is easy to introduce cracks and defects in the laser cladding process if there are huge difference between the thermal expand coefficient of coating and that of substrate [ 10 , 12 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of W Alloying on the Lattice Distortion and Wear Behavior of Laser Cladding AlCoCrFeNiWx High-Entropy Alloy Coatings

Chen

Shi

et al. 2021

Materials

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Friction and wear properties of hot working die steel at above 800 °C are of particular interest for high temperature applications. Here, novel AlCoCrFeNiWx high-entropy alloy (HEA) coatings have been fabricated on the surface of hot working die steel by laser cladding. The effects of the as-prepared AlCoCrFeNiWx HEA coatings on the microstructure and high temperature friction and wear behavior of hot working die steel are investigated through scanning electron microscopy (SEM), electron probe microanalysis (EPMA), X-ray diffraction (XRD), and X-ray absorption fine structure (XAFS). Having benefited from the formation of W-rich intermetallic compounds after the addition of W elements, the high temperature wear resistance of the coatings is obviously improved, and friction coefficient shows a large fluctuation. The microstructural characteristics of the AlCoCrFeNiWx HEA coatings after the high temperature wear resistance test shows a highly favorable impact on microstructure stability and wear resistance, due to its the strong lattice distortion effect of W element on BCC solid solutions and the second phase strengthening of the W-rich intermetallic compounds. These findings may provide a method to design the high temperature wear resistant coatings.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of W Alloying on the Lattice Distortion and Wear Behavior of Laser Cladding AlCoCrFeNiWx High-Entropy Alloy Coatings

Chen

Shi

et al. 2021

Materials

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“…Metal matrix composites (MMC) is one of the flexible strengthening techniques, where hard metallic phases or particles are dispersed in the soft matrix to improve the properties of the material 21–24 . Recently researchers have focused on developing such composites by adding hard reinforcement particles with HEA by arc melting 25 and plasma cladding 26 processes. The melting route may decompose the chemical integrity of HEA or may lead to a possible interfacial reaction between HEA and reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and properties of in‐situ high entropy alloy/tungsten carbide composites by mechanical alloying.

Sokkalingam

Tarraste

Surreddi

et al. 2020

Mat Design & Process Comms

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Al0.1CoCrFeNi‐high entropy alloy (HEA) /tungsten carbide (WC)metal matrix composite was successfully prepared by mechanical alloying and subsequent spark plasma sintering. The different volume fraction of WC was distributed evenly by varying the powder milling parameters from gentle milling (~1.37% WC) and intensive milling (~14.27% WC). Sintering of gently milled powder has resulted in the evolution of three‐phased microstructure: α‐fcc and Cr‐ rich σ‐phase with some WC‐phase distributed in the HEA matrix. On the other hand, the sintering of intensively milled powder has resulted in a two‐phased microstructure: α‐fcc phase with even and dense distribution of WC‐phased particles without any Cr‐ rich σ‐phase. The absence of σ‐phase is attributed to a complete alloying of Cr in the HEA matrix. Microhardness analysis and compression test indicate that a ~ 13% difference in WC fraction has resulted in an enhancement in hardness (46%) and compressive strength (~ 500 MPa).

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Study on tribological properties of high entropy alloy composite coatings with different tungsten carbide contents in laser cladding

Chen¹

2023

Adv Control Appl

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The severe working conditions of mining machinery make the wear of its parts extremely serious, thus reducing its service life, increasing the probability of accidents, and may cause huge economic wastage. So promoting the improvement of mining machinery is imperative, and the melting of wear‐resistant layer on the surface of wear‐prone equipment is a more effective improvement method. The study was performed by laser fusing a composite coating of CoCrFeNiMn high‐entropy alloy with different WC contents, and a second phase was generated in the coating by an additive method to achieve the strengthening of the coating. The experiments revealed that all the coatings had FCC phase as the main phase by analyzing the phase conformation, structure, stiffness, and abrasiveness. When the WC dosage exceeded 20 wt.%, Fe3W3 (M6C) carbide reinforced phases with different morphologies were produced in the coatings. Forty wt.% of the coatings showed the highest hardness, which was 3.1 times better than that of the coatings without WC particles, and 30 wt.% of the coatings showed the best abrasiveness. HT0 coatings showed the least friction factor of 0.27. HT600 and HT800 corresponded to friction factors of 0.37 and 0.35, respectively. The coefficient of friction of the coating was most stable after about 3 min at room temperature, and the wear phase took longer after annealing. During the break‐in phase, the precipitated phase has a supportive effect and prolongs the break‐in period. The coating using the studied method improves the wear resistance of mechanical parts and extends their service life, which has some economic and practical value.

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Effect of WC content on microstructures and mechanical properties of FeCoCrNi high-entropy alloy/WC composite coatings by plasma cladding

Cited by 99 publications

References 33 publications

Effects of W Alloying on the Lattice Distortion and Wear Behavior of Laser Cladding AlCoCrFeNiWx High-Entropy Alloy Coatings

Effects of W Alloying on the Lattice Distortion and Wear Behavior of Laser Cladding AlCoCrFeNiWx High-Entropy Alloy Coatings

Microstructure and properties of in‐situ high entropy alloy/tungsten carbide composites by mechanical alloying.

Study on tribological properties of high entropy alloy composite coatings with different tungsten carbide contents in laser cladding

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