Research field (1):
Structural and functional materials
Research theme for competitive and other funds (3):
2008 - 2010 Life extension of ferritic creep resistant steel by reduced dislocation density
耐熱金属材料の長時間クリープ強度特性 基底クリープ強度概念 高強度フェライト系耐熱鋼の開発
Long-term Creep Strength Property of Creep Resistant Metallic Materials Inherent Creep Strength Concept Development of High Strength Ferritic Creep Resistant Steels
Papers (45):
Tomotaka Hatakeyama, Kota Sawada, Kaoru Sekido, Toru Hara, Kazuhiro Kimura. TTP Diagrams of Graphitization of Creep Ruptured Carbon Steels and 0.5Mo Steel. ISIJ International. 2021. 61. 11. 2822-2831
Tomotaka Hatakeyama, Kota Sawada, Kaoru Sekido, Toru Hara, Kazuhiro Kimura. Microstructural factors of the complex creep rate change in 18Cr-9Ni-3Cu-Nb-N steel. Materials Science and Engineering: A. 2021. 142225-142225
Kota Sawada, Tomotaka Hatakeyama, Kaoru Sekido, Kazuhiro Kimura. Microstructural changes and creep-strength degradation in 18Cr-9Ni-3Cu-Nb-N steel. Materials Characterization. 2021. 178. 111286-111286
Tomotaka Hatakeyama, Kota Sawada, Toru Hara, Kaoru Sekido, Kazuhiro Kimura. Three-dimensional analysis of the precipitation behavior of 18Cr-9Ni-3Cu-Nb-N steel at 973 K. Scripta Materialia. 2021. 200. 113904-113904
Tomotaka Hatakeyama, Kota Sawada, Kaoru Sekido, Toru Hara, Kazuhiro Kimura. Influence of dynamic microstructural changes on the complex creep deformation behavior of 25Cr-20Ni-Nb-N steel at 873 K. Materials Science and Engineering: A. 2021. 814. 141270-141270
Long-term creep testing and materials degradation in heat resistant steels. 2015. 60. 1. 12-17
SAWADA Kota, KUSHIMA Hideaki, TABUCHI Masaaki, KIMURA Kazuhiro. 415 Evaluation of creep strength considering change of proof stress at elevated temperature during aging in Mod.9Cr-1Mo steel. 2012. 61. 333-334
SAWADA Kota, TABUCHI Masaaki, KIMURA Kazuhiro. 605 Analysis of creep curve for 300,000 hours in heat resistant steels. 2010. 59. 165-166