抄録
Innovative Materials Engineering Laboratory, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan The deformation of a tempered martensitic structure, namely tempforming was applied to a high purity 0.4%C-2%Si-l%Cr-l%Mo steel at 500 °C using multi-pass caliber rolling with an accumulative reduction in area of 77%. Charpy impact properties were investigated for the tempformed sample. An excellent combination of strength and toughness without the addition of a large amount of alloying elements such as Ni was demonstrated in the ultrafine fibrous grain structure that was processed by the tempforming. The yield strength of 1.84GPa and the V-notch Charpy absorbed energy of 226J at room temperature and the ductile-to-brittle temperature of less than -60 °C that we obtained in the medium-carbon low-alloy steel are the most optimal values that have been reported in low-alloy steels.
本文言語 | 英語 |
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ホスト出版物のタイトル | Proceedings of the 17th IFHTSE Congress |
出版社 | The Japan Society for Heat Treatment (JSHT) |
ページ | 430-433 |
ページ数 | 4 |
巻 | 2 |
ISBN(電子版) | 9780000000002 |
出版ステータス | 出版済み - 2008 |
外部発表 | はい |
イベント | 17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008 - Kobe, 日本 継続期間: 10月 26 2008 → 10月 28 2008 |
その他
その他 | 17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008 |
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国/地域 | 日本 |
City | Kobe |
Period | 10/26/08 → 10/28/08 |
!!!All Science Journal Classification (ASJC) codes
- 表面、皮膜および薄膜
- 凝縮系物理学
- 材料力学