| タイトル | Fracture-tough, high hardness stainless steel and method of making same |
| 本文（外部サイト） | http://hdl.handle.net/2060/20080005950 |
| 著者（英） | Olson, Gregory B. |
| 著者所属（英） | Northwestern Univ. |
| 発行日 | 1993-06-22 |
| 言語 | eng |
| 内容記述 | A cryogenically-formed and tempered stainless steel is provided having improved fracture toughness and corrosion resistance at a given hardness level, such as, for example, of at least about Rc 60 for bearing applications. The steel consists essentially of, in weight %, about 21 to about 24% Co, about 11 to about 13% Cr, about 7 to about 9% Ni, about 0.1 to about 0.5% Mo, about 0.2 to about 0.3% V, about 0.28 to about 0.32% C, and the balance iron. The steel includes a cryogenically-formed martensitic microstructure tempered to include about 5 to about 10 volume % post-deformation retained austenite dispersed therein and M.sub.2 C-type carbides, where M is Cr, Mo, V, and/or Fe, dispersed in the microstructure. |
| NASA分類 | Metals and Metallic Materials |
| 権利 | No Copyright |
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