Effect of Ti Content Upon the Microstructure, Mechanical Properties and Wear Behaviors of TixNi0.6CoFe1.4Nb0.05 Medium-Entropy Alloys

Wu, Jian; Liu, Xiaoyan; Zhu, Heguo

doi:10.1007/s11661-023-07026-8

Metall Mater Trans A

2023

DOI: 10.1007/s11661-023-07026-8

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Effect of Ti Content Upon the Microstructure, Mechanical Properties and Wear Behaviors of TixNi0.6CoFe1.4Nb0.05 Medium-Entropy Alloys

Jian Wu

Xiaoyan Liu

Heguo Zhu

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2024

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Effect of ultrasonic shot peening on the microstructure, surface residual stress, and wear properties of Ti-6Al-4V alloy

Sun,

Si,

Wang

2024

Surface Engineering

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In this study, ultrasonic shot peening (USP) was used to enhance the surface of a Ti-6Al-4V alloy. Samples treated with different amplitudes were characterized and their wear resistance was tested and analyzed. The results demonstrate that the surface morphology of the Ti-6Al-4V alloy changed significantly after USP treatment, and the surface roughness increases at first, then stabilizes as the amplitude increases. The surface grain of the material is refined due to severe plastic deformation, and the average grain size after USP treatment is 27.93% finer than the original sample. Due to the effect of fine grain strengthening and work hardening, the microhardness of the material's near-surface layer is also enhanced in varying degrees, showing a gradient decrease throughout the depth of the cross-section. Furthermore, USP produces compressive residual stress as high as −791.01 MPa in the near-surface layer. When the USP amplitude is 80% and the treatment time is 240 s, the wear resistance of Ti-6Al-4V alloy is substantially enhanced under the combined action of hardness, compressive residual stress, and surface pits, reducing wear resistance. The wear mechanism is primarily abrasive wear and oxidation wear.

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Effect of ultrasonic shot peening on the microstructure, surface residual stress, and wear properties of Ti-6Al-4V alloy

Sun,

Si,

Wang

2024

Surface Engineering

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show abstract

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Effect of Ti Content Upon the Microstructure, Mechanical Properties and Wear Behaviors of TixNi0.6CoFe1.4Nb0.05 Medium-Entropy Alloys

Cited by 1 publication

References 50 publications

Effect of ultrasonic shot peening on the microstructure, surface residual stress, and wear properties of Ti-6Al-4V alloy

Effect of ultrasonic shot peening on the microstructure, surface residual stress, and wear properties of Ti-6Al-4V alloy

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