Microtexture in the friction-stir weld of an aluminum alloy

Citation
Ys. Sato et al., Microtexture in the friction-stir weld of an aluminum alloy, MET MAT T A, 32(4), 2001, pp. 941-948
Citations number
36
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science",Metallurgy
Journal title
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN journal
1073-5623 → ACNP
Volume
32
Issue
4
Year of publication
2001
Pages
941 - 948
Database
ISI
SICI code
1073-5623(200104)32:4<941:MITFWO>2.0.ZU;2-6
Abstract
In order to characterize plastic flow during friction-stir welding, the mic rotextures in a friction-stir weld of the precipitation-hardened aluminum a lloy 6063 have been analyzed by orientation imaging microscopy (OIM). The b ase-material plate has a Goss orientation. The weld center region, except f or the upper surface, takes a typical shear texture component with two type s of orientations. The orientations have a pair of common {111} and [110] p arallel to the cylindrical pin surface and transverse direction of the plat e, respectively. The typical texture component is also observed around the weld center on the midsection, although it rotates about the plate normal d irection. A microtexture analysis after postweld heat treatment has suggest ed that dynamic recrystallization during friction-stir welding generates th e recrystallized grains at the weld center.