Simulation of residual stress and micro-plastic deformation induced by laser shock imprinting on TC4 titanium alloy aero-engine blade

Review Engineering, Industrial

On-line evaluation and monitoring technology for material surface integrity in laser shock peening-A review

Rui Qin et al.

Summary: Laser shock peening (LSP) is a surface plasticity strengthening technique that enhances the mechanical properties of metallic materials by introducing residual compressive stresses and improving the microstructure on the material surface. The development of online monitoring technology can ensure stable and efficient production processes and further advance the technology in high-quality and high-efficiency production areas.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY (2023)

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Article Physics, Condensed Matter

Influence of Process Parameters on Laser Shock Processing Effect of Aero-Engine Blades

Mengyue Wang et al.

Summary: This paper provides a detailed introduction to the application of laser shock processing technology in the surface strengthening of aero-engine blades, and analyzes the development prospects and existing problems of the technology. The influence of process parameters, absorption layer, and constraint layer on the strengthening effect of laser shock processing is discussed.

JOURNAL OF SURFACE INVESTIGATION (2022)

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Article Materials Science, Multidisciplinary

Surface Topography Control of TA2 Pure Titanium in Laser Shock Peening

Wei Cheng et al.

Summary: This paper proposes a technique called laser shock imprinting (LSI) to guide plastic deformation on a metal surface. Experimental results show that LSI treatment can produce samples with lower surface roughness and flatter surface profile compared to laser shock peening (LSP).

METALS (2022)

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Article Engineering, Mechanical

Fatigue performance of laser shock peened Ti6Al4V and Al6061-T6 alloys

N. Maharjan et al.

Summary: The propagation of fatigue crack in laser shock peened metallic components is delayed by the introduction of deep compressive residual stresses. The study investigates the effects of laser shock peening on near-surface properties of Ti6Al4V and Al6061-T6 alloys and how these changes influence overall fatigue performance. It is found that both surface residual stresses and surface topography significantly impact the fatigue life of a component.

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES (2021)

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Article Chemistry, Physical