Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 66, Issue 9-12, Pages 1825-1834Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-012-4462-z
Keywords
Aluminum alloys; Aging; MIG weld; Similar and dissimilar joints; XRD analysis
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In this article, Metal Inert Gas (MIG) weldability of commercially received and aged samples of 6061-T-6 and 7075-T-651 aluminum alloys was investigated. The welding joints were prepared in ten different combinations. Microstructure, microhardness, EDX, energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD) analyses were used in order to evaluate the effect of aged heat treatment on the performance of welded joints. In addition, the mechanical properties of welding joints were characterized using the tensile and microhardness tests. In conclusion, it was shown that prewelding aging heat treatment improves the mechanical properties of welding joints.
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