Dynamic restoration process of Ni-30Fe alloy during hot deformation
SCIE
SCOPUS
- Title
- Dynamic restoration process of Ni-30Fe alloy during hot deformation
- Authors
- Suh, DW; Torizuka, S; Ohmori, A; Inoue, T; Nagai, K
- Date Issued
- 2002-01
- Publisher
- ISIJ
- Abstract
- Change in deformed microstructure with dynamic restoration at various strain, strain rate and deformation temperature was examined for a Ni-3OFe alloy during hot deformation. A screw embedded specimen is used for quantitative evaluation of the distribution of compressive strain in the hot compressed specimen. A typical microstructural evolution due to dynamic recrystallization is observed at a deformation temperature of 1173 K at a strain rate of 10/s and at 1073 K and 1173 K at a strain rate of 0.1/s. On the other hand, when the compressive strain exceeds 3.2, a characteristic microstructure consisting of equiaxed recovered grains is developed at a deformation temperature of 973 K at a strain rate of 0.1/s and at deformation temperatures of 973 K and 1073 K at a strain rate of 10/s. The interpenetration of the serrated austenite grain boundaries, so-called geometric recrystallization, is thought to be responsible for microstructural evolution of the equiaxed recovered grains.
- Keywords
- Ni-30Fe alloy; austenite; deformation; microstructure; recovery; recrystallization
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/16254
- DOI
- 10.2355/ISIJINTERNATIONAL.42.432
- ISSN
- 0915-1559
- Article Type
- Article
- Citation
- ISIJ INTERNATIONAL, vol. 42, no. 4, page. 432 - 439, 2002-01
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- There are no files associated with this item.
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