Rajeshkumar, R.Niranjani, V.L.Devakumaran, K.Banerjee, K.2026-02-052021Materials Letters, 2021, 303, , pp. -0167577Xhttps://doi.org/10.1016/j.matlet.2021.130569https://idr.nitk.ac.in/handle/123456789/22997Non-dendritic equiaxed zone (EQZ) evolution and its influence on tensile properties of tungsten inert gas (TIG) welded joint of dissimilar A6061-T6 and A6082-T6 are studied. EQZ is observed in A6061-T6 interface whereas it is completely absent at the A6082-T6 interface. The distribution of fine Si eutectic phases along the grain boundaries (GBs) of EQZ of A6061-T6 interface appearing as discontinuous fine particles but as a continuous layer at most of the dendrite boundaries (DBs) at the center of the weld metal zone (WMZ). The improvement in strength of A6082-T6 interface compared to A6061-T6 interface is mainly attributed to the absence of EQZ in the former interface. © 2021 Elsevier B.V.Gas weldingGrain boundariesInert gas weldingInert gasesTexturesTungstenContinuous layersDendriticsEquiaxed zoneEutectic phasisFine-particlesGrain-boundariesMechanicalPropertyTungsten inert gasWeld metalWelds