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Abstract:
Combining the processing maps with FEA, the critical values of reduction of diameter (Delta R) for the appearance of as-cast microstructure, dynamic recrystallization grains and twins in the swaged magnesium were respectively studied, by which the rational range of Delta R was obtained. To ensure that the as-cast microstructure wouldn't be retained in the rotary-swaged magnesium, Delta R should be larger than 0.25 mm. To avoid the appearance of twins in the microstructure of rotary-swaged magnesium, Delta R should be less than 1.0 mm. Delta R should be between 0.25 min and 1.0 min to ensure the appearance of recrystallized grains. The surface roughness of rotary-swaged magnesium increases with the increase of Delta R by quadratic function. The simulated results accord well with the experimental data. In the process control of rotary-swaging(RS), Delta R should be maximized between 0.25 mm and 1.0 mm on the precondition that the requests for surface roughness have been satisfied.
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TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN: 1003-6326
Year: 2008
Volume: 18
Page: S263-S268
4 . 5 0 0
JCR@2022
ESI Discipline: MATERIALS SCIENCE;
JCR Journal Grade:3
Cited Count:
WoS CC Cited Count: 6
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1