Abstract
In order to characterize plastic flow during friction-stir welding, the microtextures in a friction-stir weld of the precipitation-hardened aluminum alloy 6063 have been analyzed by orientation imaging microscopy (OIM). The base-material plate has a Goss orientation. The weld center region, except for the upper surface, takes a typical shear texture component with two types of orientations. The orientations have a pair of common {111} and 〈110〉 parallel to the cylindrical pin surface and transverse direction of the plate, respectively. The typical texture component is also observed around the weld center on the midsection, although it rotates about the plate normal direction. A microtexture analysis after postweld heat treatment has suggested that dynamic recrystallization during friction-stir welding generates the recrystallized grains at the weld center.
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Sato, Y.S., Kokawa, H., Ikeda, K. et al. Microtexture in the friction-stir weld of an aluminum alloy. Metall Mater Trans A 32, 941–948 (2001). https://doi.org/10.1007/s11661-001-0351-z
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DOI: https://doi.org/10.1007/s11661-001-0351-z