Key engineering materials · 2007 · 21 citations · 5 references
Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsSurface EngineeringSurface ScienceCoatingsCorrosion-resistant MaterialsLaser Material ProcessingLaser Surface ProcessingResidual StressStress Corrosion CrackingAustenitic Stainless SteelsAustenitic SteelsCorrosion Of Aluminum AlloysLaser Surface ModificationNd:yag Laser TreatmentStress Corrosion Cracking TestingSurface Property DegradationTitanium Alloys
Laser peening without protective coating (LPwC) has been applied to metallic materials using low energy pulses of a Q-switched and frequency-doubled Nd:YAG laser. Compressive residual stresses of several hundred megapascals were imparted on the surface of the materials. Redistribution of the residual stress in the top surface due to thermal loading was evaluated non-destructively by synchrotron radiation of SPring-8. Accelerating stress corrosion cracking (SCC) tests showed that LPwC prohibited SCC of sensitized materials. LPwC largely prolonged the fatigue lives of titanium alloys, aluminum alloys and austenitic stainless steels.
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The Air Force Manufacturing Technology Laser Peening Initiative
D See, J. L. Dulaney, A. H. Clauer et al. · Surface Engineering · 2002 · 50 citations
Engineering, Aerospace Engineering, Manufacturing Engineering +14
Development and Application of Laser Peening System for PWR Power Plants
Masaki Yoda, Itaru Chida, Satoshi Okada et al. · Volume 1: Plant Operations, Maintenance and Life Cycle; Component Reliability and Materials Issues; Codes, Standards, Licensing and Regulatory Issues; Fuel Cycle and High Level Waste Management · 2006 · 23 citations