| 发明名称 | High Cr ferritic/martensitic steels having an improved creep resistance for in-core component materials in nuclear reactor, and preparation method thereof | ||
| 摘要 | Disclosed herein is a high Cr Ferritic/Martensitic steel comprising 0.04 to 0.13% by weight of carbon, 0.03 to 0.07% by weight of silicon, 0.40 to 0.50% by weight of manganese, 0.40 to 0.50% by weight of nickel, 8.5 to 9.5% by weight of chromium, 0.45 to 0.55% by weight of molybdenum, 0.10 to 0.25% by weight of vanadium, 0.02 to 0.10% by weight of tantalum, 0.21 to 0.25% by weight of niobium, 1.5 to 3.0% by weight of tungsten, 0.015 to 0.025% by weight of nitrogen, 0.01 to 0.02% by weight of boron and iron balance. By regulating the contents of alloying elements such as nitrogen, born, the high Cr Ferritic/Martensitic steel with superior tensile strength and creep resistance is provided, and can be effectively used as an in-core component material for sodium-cooled fast reactor (SFR). | ||
| 申请公布号 | US9598750(B2) | 申请公布日期 | 2017.03.21 |
| 申请号 | US201113280585 | 申请日期 | 2011.10.25 |
| 申请人 | KOREA ATOMIC ENERGY RESEARCH INSTITUTE;KOREA HYDRO AND NUCLEAR POWER CO., LTD | 发明人 | Kim Sung Ho;Baek Jong Hyuk;Kim Tae Kyu;Kim Woo Gon;Kim Jun Hwan;Han Chang Hee;Lee Chan Bock;Kim Yeong-Il;Hahn Dohee |
| 分类号 | C22C38/02;C22C38/00;C21D6/00;C22C1/02;C22C38/04;C22C38/44;C22C38/46;C22C38/48;C22C38/54;G21C1/02;G21C3/07 | 主分类号 | C22C38/02 |
| 代理机构 | Maier & Maier, PLLC | 代理人 | Maier & Maier, PLLC |
| 主权项 | 1. A high Cr ferritic and martensitic steel consisting of 0.04 to 0.13% by weight of carbon, 0.03 to 0.07% by weight of silicon, 0.40 to 0.50% by weight of manganese, 0.40 to 0.50% by weight of nickel, 8.5 to 9.5% by weight of chromium, 0.45 to 0.55% by weight of molybdenum, 0.10 to 0.25% by weight of vanadium, 0.02 to 0.05% by weight of tantalum, 0.21 to 0.25% by weight of niobium, 1.5 to 3.0% by weight of tungsten, 0.015 to 0.025% by weight of nitrogen, 0.015% by weight of boron and iron balance. | ||
| 地址 | Daejeon KR | ||