Ti6Al4V Bone Implants: Effect of Laser Shock Peening on Physical, Mechanical, and Biological Properties

Bakhtiari, Meisam; Khanigi, Alireza Fayazi; Salehi, M. Seyed; Farnia, Amirreza

doi:10.1007/s11665-023-08511-2

Cited by 5 publications

(1 citation statement)

References 48 publications

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“…Additionally, it produces a deeper layer of compressive residual stress (CRS), with a depth exceeding 1 mm [13,15]. These effects significantly enhance fatigue life [5,[16][17][18] and stress corrosion resistance [19][20][21], while also influencing the friction [22,23] and wear resistance [24][25][26] properties of the treated surface.…”

Section: Introductionmentioning

confidence: 99%

Surface Morphology Analysis of Laser Shock Peened 20CrMnTi Steel: A Statistical Evaluation

Wu,

Zhang,

Wang

2023

Metals

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Surface morphology impacts material performance and durability significantly. To gain a deeper understanding of the impact of laser shock peening (LSP) treatment on the surface morphology of materials and to explore more optimized LSP treatment strategies, this study presents an investigation into the surface morphology of 20CrMnTi steel following LSP treatment. Through the application of statistical analysis, the study examines the induced surface morphology variations resulting from both single-point repetitive LSP and multiple LSP treatments. Experimental results demonstrate significant alterations in surface roughness and peak height distribution after LSP treatments, accompanied by the presence of high amplitude compressive residual stress (CRS). Moreover, the depth of laser-induced indentations is found to be closely related to the number of impacts, and the incidence angle of the laser exhibits a discernible influence on the directional texture and periodicity of the impacted surfaces. This investigation also proposes a method for estimating surface morphology variations after LSP treatment by means of analysis of impact patterns, thereby offering the potential for enhancing the friction and wear performance of the impacted surfaces through the adjustment of the impact region position during multi-layer LSP treatment.

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