Plastic deformation mechanisms and their threshold pressures of Ti6Al4V thin-walled structures induced by laser peen forming

Yang, Ruoyu; Hu, Yongxiang

doi:10.1016/j.optlastec.2023.109722

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…, 2023; Sunil et al. , 2023; Yang and Hu, 2023). Laser peening (LP) is an innovative surface modification technology that uses an intense laser to impose a high-pressure shock wave on the material surface and induce residual compressive stresses into the surface layer, which is beneficial to improve the resistance of wear and corrosion (Fan et al.…”

Section: Introductionmentioning

confidence: 99%

“…Due to exposing directly to the working environment, the metal surfaces are prone to wear, corrosion and contact fatigue (Wang, 2020;Wu et al, 2014). Therefore, some strengthening technologies are used to increase the surface quality of components to extend their service life, such as rolling extrusion, shot peening and so on (Chen et al, 2023;Sunil et al, 2023;Yang and Hu, 2023). Laser peening (LP) is an innovative surface modification technology that uses an intense laser to impose a high-pressure shock wave on the material surface and induce residual compressive stresses into the surface layer, which is beneficial to improve the resistance of wear and corrosion (Fan et al, 2019;Pan and Kong, 2023).…”

Section: Introductionmentioning

confidence: 99%

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Effect of multiple laser peening on the wear resistance of 304 stainless steel

Li,

Liu,

Zhang

et al. 2024

ILT

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Purpose The purpose of this paper is to investigate the effect of laser peening (LP) on mechanical and wear properties of 304 stainless steel sheet. Design/methodology/approach Three-dimensional morphology, micro-hardness and micro-structure of shocked samples were tested. The wear amount, wear track morphology and wear mechanism were also characterized under dry sliding wear using Al2O3 ceramics ball. Findings The LP treatment generates deformation twins that contribute to the grain refinement and hardness increase. The wear test displays that the wear mechanism of samples is mainly abrasive wear and oxidation wear at 10 N load. While at 30 N, the delamination and adhesion areas of treated sample are reduced visibly compared to untreated ones. Originality/value This study specifically investigates the mechanical and wear properties of 304 stainless steel after the direct action of LP on its surface, which shows an effective improvement on the wear resistance. For example, the wear loss of processed sample is reduced by 19% at 30 N, the friction coefficient decreases from 0.4714 to 0.4308 and the groove depth is reduced from 78.1 to 74.4 µm under same condition. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-01-2024-0007/

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Section: Introductionmentioning

confidence: 99%