Microstructure and mechanical properties of in-situ TiC reinforced FeCoNiCu2.0 high entropy alloy matrix composites

Zhang, Jifeng; Jia, Ting; Zhu, Heguo; Xie, Zonghan

doi:10.1016/j.msea.2021.141671

Cited by 27 publications

(3 citation statements)

References 20 publications

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“…However, when the energy density is 35.8J/mm 3 , the hardness of the alloy is obviously higher, because the selective laser melting is a process of rapid heating and cooling, and has the effect of fine grain strengthening and the size of primary Si particles. According to the Orowan reinforcement equation [ 37 , 38 ]:

Where d p is the average particle size; M is the average orientation factor; b is the bergheit vector of alloy; G m is the shear modulus of alloy; ν is Poisson's ratio; λ is the particle spacing. Therefore, the larger the Si particle size, the higher the strength.…”

Section: Resultsmentioning

confidence: 99%

Effect of process parameters on microstructures and properties of Al–42Si alloy fabricated by selective laser melting

Cai¹,

Liu

Xuan

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Effect of process parameters on microstructures and properties of Al–42Si alloy fabricated by selective laser melting

Cai¹,

Liu

Xuan

et al. 2022

Heliyon

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“…Due to its high modulus, high hardness, and high melting points, TiC has been widely used as reinforcement in the preparation of metal matrix composites. Zhang et al [1] added TiC into FeCoNiCu2.0 by induction melting method, and found that the ultimate tensile strength of 10 vol.%TiC/FeCoNiCu 2.0 composite reached 698 MPa, which was 47.6% higher than that of the matrix. Radhakrishnan et al [2] found that the mechanical performance of the Ti/TiC composite deposits can be improved using techniques that promote complete dissolution of the original TiC.…”

Section: Introductionmentioning

confidence: 99%

The microstructures of in-situ synthesized TiC by Ti-CNTs reaction in Cu melts

Wang

et al. 2022

Materials Science-Poland

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In order to study the influence of the carbon nanotubes (CNTs) as a source of carbon on the microstructure of in-situ synthesized TiC in Cu melts, CNTs and Ti powders were introduced into melted Cu to prepare TiC-reinforced Cu matrix composites. The influence of Ti/C ratio and Si on the microstructures and properties of the composites were also examined. It is found that CNTs can be effectively wetted through the Ti-C reaction and successfully introduced into Cu melt to synthesize TiC. In examining the changes in Ti/C ratio, it was found that an increase in the Ti content may result in the decrease of TiC agglomeration and improvement of TiC dispersion, while simultaneously causing an increase in the TiC particle size. Besides, while the addition of Si into Ti-CNTs mixture can also improve the distribution of TiC, the effect is weak compared with that of increasing the content of Ti. It was also found that the highest hardness (238.8 HV) is achieved by the Cu-Ti-C composite with the highest Ti/C ratio, while the electrical conductivities of all the prepared composites are relatively low, which should be due to the insufficient reaction between Ti and CNTs.

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“…Recently, researchers have focused their attention to improving HEA coating properties by adding some ceramic reinforcing particles. For instance, Zhang et al [10] added 10 vol% TiC into FeCoNiCu 2.0 , and the optimal ultimate tensile strength of the alloys increased from 473 MPa to 698 MPa. Bao et al [11] added 20 wt% WC into FeCoCrNiB 0.2 , improving the Vickers hardness and the cavitation erosion resistance (Re) of the FeCoCrNiB 0.2 HEA.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical, and Electrochemical Properties of SiC Particle Reinforced CoCrFeNiCu High-Entropy Alloy Coatings

Liu

et al. 2022

Coatings

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SiC particle reinforced CoCrFeNiCu high-entropy alloy (HEA) coatings (CoCrFeNiCu(SiC)x, x = 0, 5, 10, 15 wt%) were successfully fabricated on 316L stainless steel via laser cladding technique. The effects of SiC particles on the microstructure, mechanical, and electrochemical properties of CoCrFeNiCu HEA were investigated. The results showed that the as-fabricated CoCrFeNiCu(SiC)x HEA coatings is a FCC structure, and a secondary phase formed of Cr7C3 at the grain boundaries. Grain boundary strengthening enhances the mechanical properties of CoCrFeNiCu(SiC)x HEA coatings. Especially for CoCrFeNiCu(SiC)15 HEA coatings, the microhardness, wear weight, and friction coefficient were 568.4 HV, 0.9 mg, and 0.35, respectively. With the increasing of SiC content, the corrosion resistance of CoCrFeNiCu(SiC)x HEA coatings was enhanced in 3.5% NaCl solution. The CoCrFeNiCu(SiC)10 coatings showed better performance than others when they were evaluated for corrosion. These results indicated that the CoCrFeNiCu(SiC)x HEA coatings could significantly enhance the wear, friction, and corrosion resistance properties of the 316L stainless steel.

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Microstructure and mechanical properties of in-situ TiC reinforced FeCoNiCu2.0 high entropy alloy matrix composites

Cited by 27 publications

References 20 publications

Effect of process parameters on microstructures and properties of Al–42Si alloy fabricated by selective laser melting

Effect of process parameters on microstructures and properties of Al–42Si alloy fabricated by selective laser melting

The microstructures of in-situ synthesized TiC by Ti-CNTs reaction in Cu melts

Microstructure, Mechanical, and Electrochemical Properties of SiC Particle Reinforced CoCrFeNiCu High-Entropy Alloy Coatings

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