Effect of initial orientation on the cold-rolling behavior of solidified columnar crystals in an Fe-36%Ni austenitic alloy
- Kyoto Univ. (Japan). Dept. of Materials Science and Engineering
The cold rolling behavior of a solidified columnar-crystal specimen with the {l_brace}001{r_brace} initial texture in an Fe-36%Ni austenitic (f.c.c.) alloy has been investigated. The rolled microstructure and the crystal rotation strongly depended on the initial orientation of columnar grains, 70% rolled microstructure of the initially (001)[100] oriented grains was composed of three kinds of deformed microstructures: the smoothly-etched matrix with the (001)[100] orientation, the wide deformation bands roughly parallel to the transverse direction (TD) with the (101)[10{bar 1}] orientation and the narrow deformation bands parallel to the rolling direction (RD). The shear bands inclined by 30 deg from the rolling plane formed within the initially (001)[110] oriented grains, where the matrix regions rotated to the {l_brace}113{r_brace}<332> orientation. Each shear band was composed of many elongated cells whose width was less than 0.2 {mu}m. The formation of each deformed microstructure was discussed in connection with the active slip systems.
- OSTI ID:
- 27902
- Journal Information:
- Acta Metallurgica et Materialia, Journal Name: Acta Metallurgica et Materialia Journal Issue: 2 Vol. 43; ISSN 0956-7151; ISSN AMATEB
- Country of Publication:
- United States
- Language:
- English
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