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J Nanosci Nanotechnol. 2018 Mar 1;18(3):2144-2147. doi: 10.1166/jnn.2018.14988.

Hot Deformation Behavior of Hot-Extruded AA7175 Through Hot Torsion Tests.

Author information

1
Department of Materials Process Engineering, Inha University, Incheon 22212, Republic of Korea.
2
Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea.
3
Korea Institute of Industrial Technology, Incheon 21999, Republic of Korea.
4
Formetal, INC., Seosan 31919, Republic of Korea.

Abstract

The hot deformation behavior of hot-extruded AA7175 was investigated with flow curves and processing maps through hot torsion tests. The flow curves and the deformed microstructures revealed that dynamic recrystallization (DRX) occurred in the hot-extruded AA7175 during hot working. The failure strain was highest at medium temperature. This was mainly influenced by the dynamic precipitation of fine rod-shaped MgZn2. The processing map determined the optimal deformation condition for the alloy during hot working.

PMID:
29448732
DOI:
10.1166/jnn.2018.14988

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