gibson-effectofvibrationduring-2017.pdf (2.97 MB)
The effect of vibration during friction stir welding on corrosion behavior, mechanical properties, and machining characteristics of stir zone
journal contribution
posted on 2017-10-10, 00:00 authored by S Fouladi, A H Ghasemi, M Abbasi, M Abedini, AmirMahyar KhorasaniAmirMahyar Khorasani, Ian GibsonIan GibsonDifferent methods have been applied to refine various characteristics of the zone (or nugget) obtained by friction stir welding (FSW). In the current research, joining components are vibrated normal to the weld line during FSW to refine the zone microstructure. This process is described as friction stir vibration welding (FSVW). The effect of FSVW on mechanical properties, corrosion behavior, and machining characteristics of the zone are investigated. Al5052 alloy specimens are welded using FSW and FSVW processes and their different characteristics are compared and discussed. The results show that the strength and ductility of the welded parts increase when the vibration is applied. The outcomes also show that corrosion resistance of the nugget for FSV-welded specimens is lower than FS welded samples, and machining force of the former specimens is higher than the latter ones. These are related to smaller grain size in the zone of FSV-welded specimens compared to FS welded parts. Smaller grain size leads to a greater volume fraction of grain boundaries and, correspondingly, higher strength and hardness, as well as lower corrosion resistance.
History
Journal
MetalsVolume
7Issue
10Pagination
421 - 433Publisher
M D P I AGLocation
Basel, SwitzerlandPublisher DOI
eISSN
2075-4701Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2017, The AuthorsUsage metrics
Keywords
friction stir welding (FSW)friction stir vibration welding (FSVW)mechanical propertiescorrosion resistancemachiningScience & TechnologyTechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringMaterials Sciencefriction stir weldingfriction stir vibration weldingAZ31 MAGNESIUM ALLOYALUMINUM-ALLOYGRAIN-SIZEAL-ALLOYSSTEELMICROSTRUCTURETEMPERATUREFSWNUGGETJOINTSMechanical Engineering
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