Affiliation:
1. Hokkaido University
2. Japan Atomic Energy Agency
Abstract
The hot rolling at temperature range of 1100 °C to 862 °C and subsequent air-cooling induce a formation of the coarse ferrite grains in the 9CrODS steels. This coarse ferrite is produced by transformation from the severely hot rolled γ-grains to ferrite. Formation process and mechanism of the transformed coarse ferrite are interpreted in terms of a nucleation, growth and coalescence of the same variant ferrite grains under a variant restriction rule.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference8 articles.
1. S. Ukai, S. Ohtsuka, Energy Mater. 2 (1) (2007) 26-35.
2. S. Ohtsuka, S. Ukai, M. Fujiwara, H. Sakasegawa, T. Kaito, T. Narita, J. Nucl. Mater. 367-370 (2007) 160-165.
3. M. Yamamoto, S. Ukai, S. Hayashi, T. Kaito and S. Ohtsuka, Materials Science and Engineering A 527 (2010) 4418-4423.
4. S. Ukai, S. Ohtsuka, T. Kaito, H. Sakasegawa, N. Chikata and S. Hayashi, Materials Science and Engineering A 510-511 (2009) 115-120.
5. S. Ukai, et al., 12th International Conference on Creep and Fracture of Engineering Materials and Structures, May 27 - 31, 2012, Kyoto, Kyoto, Japan.