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Shock peening by ultrashort pulsed lasers
ICALEO 2018: 37th International Congress on Applications of Lasers & Electro-Optics, 2018We compared the results of femtosecond laser peening obtained at different condition (in air without coating, in water and in air with coating) and by different overlap ratio. Austenic stainless steel was used as the test sample. The Vickers microhardness was used to probe the work hardening and a 3D profilometer was used to evaluate the surface ...
Yuxin Li, Xin Zhao, Yalin Dong, Chang Ye
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Study of the Parameters of Laser-Induced Shock Waves for Laser Shock Peening of Silicon
JETP Letters, 2020The ranges of energies of femtosecond laser pulses and distances from the focusing point of intense (up to 1013 W/cm2) femtosecond laser radiation to a silicon sample in which phase transitions can be initiated have been determined using the time-resolved shadow photography technique.
E. I. Mareev +2 more
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Shock Wave Propagation and Spallation Study in Laser Shock Peening
Journal of Engineering Materials and Technology, 2009This paper deals with the spallation induced by shock wave propagation in targets during the laser shock peening process. Physical aspects concerning laser-matter interaction, shock wave propagation, and spallation are considered. A continuous kinetic model for the spallation process is included in a one-dimensional finite-difference hydrodynamic code ...
Yunfeng Cao, Yung C. Shin
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2D Simulations of the NS-Laser Shock Peening
2019 IEEE Pulsed Power & Plasma Science (PPPS), 2019Laser shock peening (LSP) is a widely known technique, which is used in industry to improve the properties and performance of metallic components. Laser induced compressive residual stresses (RS) allow to enhance the fatigue life of aircraft structures. Due to deeper depth and higher magnitude of RS in the target material, this technique is a potential
V. Pozdnyakov, J. Oberrath
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Developments in Laser Shock Peening for Aerospace Applications
AM&P Technical ArticlesAbstract Laser shock peening is a novel surface engineering method that improves component performance by introducing deep compressive residual stress. It has demonstrated significant benefits in safety-critical applications such as aerospace engines. Ongoing research focuses on lowering the cost and increasing equipment flexibility.
Niall A. Smyth, Michael E. Fitzpatrick
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Strengthening CrFeCoNiMn0.75Cu0.25 high entropy alloy via laser shock peening
International Journal of Plasticity, 2022Yongjiang Huang +2 more
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