Modification of surface and subsurface properties of aa1050 alloy by shot peening

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dc.contributor.authorAvcu Y.Y.
dc.contributor.authorGönül B.
dc.contributor.authorYetik O.
dc.contributor.authorSönmez F.
dc.contributor.authorCengiz A.
dc.contributor.authorGuney M.
dc.contributor.authorAvcu E.
dc.date.accessioned2024-07-22T08:05:27Z
dc.date.available2024-07-22T08:05:27Z
dc.date.issued2021
dc.description.abstractAA1050 Al alloy samples were shot-peened using stainless-steel shots at shot peening (SP) pressures of 0.1 and 0.5 MPa and surface cover rates of 100% and 1000% using a custom-designed SP system. The hardness of shot-peened samples was around twice that of unpeened samples. Hardness increased with peening pressure, whereas the higher cover rate did not lead to hardness improvement. Micro-crack formation and embedment of shots occurred by SP, while average surface roughness increased up to 9 µm at the higher peening pressure and cover rate, indicating surface deterioration. The areal coverage of the embedded shots ranged from 1% to 5% depending on the peening parameters, and the number and the mean size of the embedded shots increased at the higher SP pressure and cover rate. As evidenced and discussed through the surface and cross-sectional SEM images, the main deformation mechanisms during SP were schematically described as crater formation, folding, micro-crack formation, and material removal. Overall, shot-peened samples demonstrated improved mechanical properties, whereas sample surface integrity only deteriorated notably during SP at the higher pressure, suggesting that selecting optimal peening parameters is key to the safe use of SP. The implemented methodology can be used to modify similar soft alloys within confined compromises in surface features. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
dc.identifier.DOI-ID10.3390/ma14216575
dc.identifier.issn19961944
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13144
dc.language.isoEnglish
dc.publisherMDPI
dc.rightsAll Open Access; Gold Open Access; Green Open Access
dc.subjectAluminum alloys
dc.subjectCracks
dc.subjectDeterioration
dc.subjectHardness
dc.subjectShot peening
dc.subjectAl-alloy
dc.subjectAreal coverage
dc.subjectMechanical behavior
dc.subjectMicrocrack formation
dc.subjectShot-peening
dc.subjectSoft metals
dc.subjectSteel shot
dc.subjectSubsurface properties
dc.subjectSurface cover
dc.subjectSurface deterioration
dc.subjectSurface roughness
dc.titleModification of surface and subsurface properties of aa1050 alloy by shot peening
dc.typeArticle

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