Laser Shock Peening: Modeling, Simulations, and Applications

Guo, Y. B.

doi:10.5772/13094

Cited by 2 publications

(3 citation statements)

References 39 publications

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“…Micro-hardness distribution profiles of the brass specimen cross section is shown in Figure (5). First far from the surface at a distance of 0.8-1.0 mm from surface, for untreated material, the micro-hardness takes a constant value of 122 HV.…”

Section: Results and Discussion Micro-hardness Resultsmentioning

confidence: 99%

“…The micro-hardness variations prior to and after LSP of brass and Aluminum alloy 2024-T3 was measured using the Vickers hardness method with " Digital Micro Vickers Hardness Tester ESEWEY" Model EW422-DAT.2012-UK production was used in UKM Malaysia University as shown in Figure (3)(4)(5)(6)(7)(8)(9)(10). The measurement was made with 200 g load and 15 sec hold time.…”

Section: The Measurements Measurements Of Micro-hardnessmentioning

confidence: 99%

“…Once the peak pressure exceeds material yield strength, the transient shock pressure causes severe plastic deformation, refined grain size, compressive residual stresses, and increased hardness at the surface and in the subsurface. As a result, the mechanical properties on the workpiece surface are enhanced [5]. The depth of the laser processed zone depends mainly on the laser power intensity, pulse length, and material properties [6].…”

Section: Introductionmentioning

confidence: 99%

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Effect of the Laser Shock Processing onWear Resistance of Brass Alloy

M.Faydh,

Kadhim Al-Ogaili,

T.Salim

2014

ETJ

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Laser shock processing (LSP) is becoming an important surface treatment to induce a compressive residual stress field, which improves micro-hardness, fatigue and fracture properties of components. In this work, we examine the effect of laser shock processing on the surface micro-hardness and wear resistance of brass alloy. After LSP treatment, micro-hardness values increased by 97% at the metal surface and decreases gradually with distance below the surface. It is observed that LSP impact can improve the wear resistance of brass, where the wear rate is reduced by 79% compared with the untreated LSP specimens due to work hardening and compressive residual stress of LSP impact. From SEM micrograph analysis of worn surface, the grooves and compacted debris of LSP treated sample are smaller and less than these untreated LSP samples.

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Section: Results and Discussion Micro-hardness Resultsmentioning

confidence: 99%