In the paper the continuous dynamic recrystallization (CDRX) phenomena occurring in the FSW of AA7075-T6 butt joints is investigated at the varying of the most relevant technological and geometrical parameters. In particular, both experiments and numerical simulations obtained utilizing a 3D Lagrangian implicit, coupled, rigid-viscoplastic model have been developed on FSW butt joints. The resulting microstructure at the core of the weldings is correlated to the material flow occurring during the FSW process.
Issue Section:
Research Papers
Keywords:
joining materials,
butt welding,
recrystallisation,
FSW,
CDRX,
FEM,
material flow,
tool geometry
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0921-5093 (submitted).Copyright © 2006
by American Society of Mechanical Engineers
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