Effects of Si content on the microstructure and properties of CoCrFeMnNiSix high-entropy alloy coatings by laser cladding

Lin, Tianxiang; Feng, Meiyan; Lian, Guofu; Lu, Hua; Chen, Changrong; Huang, Xu

doi:10.1016/j.matchar.2024.114246

Materials Characterization

2024

DOI: 10.1016/j.matchar.2024.114246

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Effects of Si content on the microstructure and properties of CoCrFeMnNiSix high-entropy alloy coatings by laser cladding

Tianxiang Lin,

Meiyan Feng,

Guofu Lian

et al.

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Cited by 6 publications

References 67 publications

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Effect of MoS2 on the microstructure evolution of laser cladding M2 coatings

Ma,

Yang,

Wang

et al. 2024

Ceramics International

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Effect of MoS2 on the microstructure evolution of laser cladding M2 coatings

Ma,

Yang,

Wang

et al. 2024

Ceramics International

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The study on the magnetic FeCoNiCuAl high-entropy alloy film with excellent corrosion resistance

Li,

Xia,

et al. 2025

Vacuum

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Influence of Si Content on the Microstructure, Wear Resistance, and Corrosion Resistance of FeCoNiCrAl0.7Cu0.3Six High Entropy Alloy

Xi,

2024

Coatings

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This study explores microstructure, wear, and corrosion resistance properties of FeCoNiCrAl0.7Cu0.3Six (x = 0, 0.2, 0.3, 0.5) high-entropy alloys. The FeCoNiCrAl0.7Cu0.3Six alloy contains FCC and BCC structures; as the x increases, the FeCoNiCrAl0.7Cu0.3Si0.2, FeCoNiCrAl0.7Cu0.3Si0.4, and FeCoNiCrAl0.7Cu0.3Si0.5 high-entropy alloys transition to BCC structures. The morphological transition in FeCoNiCrAl0.7Cu0.3Six evolves from bamboo leaf-like intergranular features to a discontinuous intergranular structure as Si content increases. The hardness of these alloys gradually increases with higher Si content. The addition of Si promotes a uniform distribution of Cr within and between grains, reducing the intergranular segregation of Cu. Al and Ni show a consistent pattern of elemental distribution throughout the alloy. Wear measurements of FeCoNiCrAl0.7Cu0.3Six alloys demonstrate that adding Si enhances wear resistance, resulting in smoother wear surfaces with reduced deformation. The wear mechanism for all alloys is primarily abrasive, with no brittle fractures observed. Corrosion resistance is optimized when Si content is 0.2, with pitting corrosion being the primary corrosion form.

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Effects of Si content on the microstructure and properties of CoCrFeMnNiSix high-entropy alloy coatings by laser cladding

Cited by 6 publications

References 67 publications

Effect of MoS2 on the microstructure evolution of laser cladding M2 coatings

Effect of MoS2 on the microstructure evolution of laser cladding M2 coatings

The study on the magnetic FeCoNiCuAl high-entropy alloy film with excellent corrosion resistance

Influence of Si Content on the Microstructure, Wear Resistance, and Corrosion Resistance of FeCoNiCrAl0.7Cu0.3Six High Entropy Alloy

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