Research on surface properties of Ti-6Al-4V alloy by multi-ultrasonic rolling

The main purpose of this paper was to investigate the effect of the multiple ultrasonic surface rolling process (USRP) on the surface mechanical properties and wear mechanism of Ti-6Al-4V. Firstly, X-ray diffraction (XRD) microscopic analysis, work hardening and residual stress were used to measure...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science Journal of mechanical engineering science, 2021-11, Vol.235 (21), p.5594-5602
Main Authors: Wang, Pengcheng, Pan, Yongzhi, Liu, Yanjie, Fu, Xiuli, Li, Hongxia
Format: Article
Language:English
Subjects:
Adhesive wear
Coefficient of friction
Mechanical properties
Oxidation
Residual stress
Skin pass rolling
Surface properties
Titanium base alloys
Wear mechanisms
Wear resistance
White light
Work hardening
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Summary:The main purpose of this paper was to investigate the effect of the multiple ultrasonic surface rolling process (USRP) on the surface mechanical properties and wear mechanism of Ti-6Al-4V. Firstly, X-ray diffraction (XRD) microscopic analysis, work hardening and residual stress were used to measure and characterize the surface performance by USRP. The friction coefficient and wear morphology were obtained by the scanning electron microscope (SEM), three-dimension (3D) white light interferometer and energy dispersive spectrometer (EDS). The results showed that the material surface mechanical properties was effectively improved by the USRP, and the surface grains were refined to form nanoscale. It also can be found that the wear resistance of the material surface was effected by the surface mechanical properties. With the increase of processing, the main wear mechanism changed from delamination-based oxidation wear to adhesive wear with the increase of processing.
ISSN:0954-4062
2041-2983
DOI:10.1177/0954406220984194