Publication:
Failure Analysis and Microstructural Evolution of Fibre Laser Welded Dissimilar Al Alloy Joints

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dc.citedby0
dc.contributor.authorBaqer Y.M.en_US
dc.contributor.authorRamesh S.en_US
dc.contributor.authorYusof F.en_US
dc.contributor.authorIbrahim M.Z.en_US
dc.contributor.authorid57200227978en_US
dc.contributor.authorid41061958200en_US
dc.contributor.authorid36706857100en_US
dc.contributor.authorid57194003641en_US
dc.date.accessioned2025-03-03T07:47:18Z
dc.date.available2025-03-03T07:47:18Z
dc.date.issued2024
dc.description.abstractDue to their outstanding corrosion resistance, mechanical characteristics and low specific density, AA5083 and AA6061-T6 Al alloys are used in the aerospace, automotive and marine sectors. Joining such dissimilar Al alloys using conventional fusion welding techniques is very challenging. In contrast, laser beam welding (LBW) is a non-conventional welding technique that is promising to weld dissimilar materials. The viability of welding dissimilar AA5083 and AA6061-T6 joints using fibre laser welding are examined herein. The effect of laser power and welding speed on the morphological, microstructural, microhardness and tensile strength of the welded joints was assessed and revealed that increasing welding power resulted in deeper keyhole penetration. Microporosities were formed due to Mg evaporation and shrinkages; however, the existence of these porosities did not show significant effect on the tensile strength. The microhardness values indicate that the welds were harder than the AA6061 and AA5083 base metals. This is explained by the existence of Mg2Si phase in the AA5083-AA6061 dissimilar junction in addition to the grain size circumstances. The fracture examination showed brittle fracture pattern that is regarded to the formation of brittle intermetallic compound (IMC) phases of Mg2Si, in addition to the inter-dendritic brittle phases of other sites as they were frequently inter-granular. ? 2024 Old City Publishing, Inc.en_US
dc.description.natureFinalen_US
dc.identifier.epage385
dc.identifier.issue4-Jun
dc.identifier.scopus2-s2.0-85194964455
dc.identifier.spage367
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85194964455&partnerID=40&md5=959c326b721c7f90f86ca6145095c341
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/37082
dc.identifier.volume57
dc.pagecount18
dc.publisherOld City Publishingen_US
dc.sourceScopus
dc.sourcetitleLasers in Engineering
dc.subjectAluminum alloys
dc.subjectAluminum corrosion
dc.subjectBrittle fracture
dc.subjectCorrosion resistance
dc.subjectCorrosion resistant alloys
dc.subjectFailure analysis
dc.subjectFiber lasers
dc.subjectIntermetallics
dc.subjectLaser beam welding
dc.subjectLaser beams
dc.subjectMicrohardness
dc.subjectMicrostructural evolution
dc.subjectMorphology
dc.subjectSeawater corrosion
dc.subjectSilicon compounds
dc.subjectWelds
dc.subjectAa5083 welding
dc.subjectAa6061
dc.subjectAA6061-T6
dc.subjectAerospace sectors
dc.subjectAl-alloy
dc.subjectAlloys joints
dc.subjectAutomotive sector
dc.subjectDissimilar al alloys
dc.subjectDissimilar welding
dc.subjectMechanical characteristics
dc.subjectTensile strength
dc.titleFailure Analysis and Microstructural Evolution of Fibre Laser Welded Dissimilar Al Alloy Jointsen_US
dc.typeArticleen_US
dspace.entity.typePublication
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