Laser shock processing of 6061-T6 aluminium alloy: Thermal modelling and analysis

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dc.contributor.authorZafar H.
dc.contributor.authorSaklakoglu N.
dc.contributor.authorIrizalp S.G.
dc.contributor.authorKhan S.
dc.contributor.authorShuja S.Z.
dc.contributor.authorBoran K.
dc.contributor.authorYilbas B.S.
dc.date.accessioned2024-07-22T08:12:34Z
dc.date.available2024-07-22T08:12:34Z
dc.date.issued2016
dc.description.abstractLaser shock processing of 6061-T6 aluminium alloy is carried out. Temperature and stress fields are simulated in line with the experimental conditions. Metallurgical changes due to the laser shock and microhardness in the laser treated region are examined using analytical tools that include scanning and transmission electron microscopes and microhardness tester. The depth of shock affected region, plastic strain, and dislocation density are determined numerically and experimentally in the laser treated region. It is found that the temperature attains high values at the centre of the irradiated spot resulting in high rate of evaporation at the surface. The recoil pressure formed, due to high evaporation rate, at the laser treated surface results in plastic deformation of about 500 mm below the surface. A dislocation density of the order 2 × 1013 to 4 × 1013 cm-2 occurs in the surface region. Although high temperature gradients result in high stress levels in the region below the surface vicinity, high recoil pressure results in crack free surface with compressive stress. © 2016 Old City Publishing, Inc.
dc.identifier.issn08981507
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/16104
dc.language.isoEnglish
dc.publisherOld City Publishing
dc.subjectAluminum
dc.subjectAluminum alloys
dc.subjectCompressive stress
dc.subjectDislocations (crystals)
dc.subjectEvaporation
dc.subjectMetallurgy
dc.subjectMicrohardness
dc.subjectNeodymium
dc.subjectPlastic deformation
dc.subjectShot peening
dc.subjectTransmission electron microscopy
dc.subject6061-t6 aluminium alloys
dc.subjectLaser shock processing
dc.subjectLaser shot peening
dc.subjectMetallurgical changes
dc.subjectND : YAG lasers
dc.subjectRecession velocity
dc.subjectRecoil pressure
dc.subjectSurface evaporation
dc.subjectNeodymium lasers
dc.titleLaser shock processing of 6061-T6 aluminium alloy: Thermal modelling and analysis
dc.typeArticle

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