Journal
MATERIALS & DESIGN
Volume 54, Issue -, Pages 207-211Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2013.08.018
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5083-H111 and 6082-T651 aluminum alloys used particularly in shipbuilding industry especially for the sake of their high corrosion resistance and moderate strength, were welded using Pulsed Robotic Cold Metal Transfer (CMT)-Metal Inert Gas (MIG) technology. Joints were fabricated as both similar and dissimilar alloy welds using plates with a thickness of 6 mm. Non-destructive tests such as visual and radiological examination were conducted before further destructive tests. Tensile, bend and fatigue tests were applied to specimens extracted from welded joints. Fracture surfaces of fatigue samples were examined by light optical microscopy (LOM) and scanning electron microscopy (SEM). Also macro and microstructures of weld zones were investigated and micro hardness profiles were obtained. In accordance with results, CMT-MIG provides good joint efficiency with high welding speed, and good tensile and fatigue performance. (C) 2013 Elsevier Ltd. All rights reserved.
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