After addition of nanoparticles to reinforcing of joint properties that fabricated by friction stir welding, agglomeration of particles observed in nugget zone. How we can prevent it? Base materials were aluminum alloys and joints reinforced by alumina nanoparticles.
Tool types may be important but large differences in particle agglomeration can be realized by varying the processing parameters. Smaller advance per revolution or multiple passes will enhance mixing.
I would suggest looking in the literature for papers modeling the flow associated with various FSW tool types.
Tool types may be important but large differences in particle agglomeration can be realized by varying the processing parameters. Smaller advance per revolution or multiple passes will enhance mixing.
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