| 发明名称 | High-hardness hardfacing alloy powder | ||
| 摘要 | The present invention relates to a high-hardness hardfacing alloy powder, containing: 0.5<C≦3.0 mass %, 0.5≦Si≦5.0 mass %, 10.0≦Cr≦30.0 mass %, and 16.0<Mo≦40.0 mass %, with the balance being Co and unavoidable impurities, wherein a total amount of Mo and Cr satisfies 40.0≦Mo+Cr≦70.0 mass %. The high-hardness hardfacing alloy powder according to the present invention may further contain at least one element selected from the group consisting of: Ca≦0.03 mass %, P≦0.03 mass %, Ni≦5.0 mass % and Fe≦5.0 mass %. The high-hardness hardfacing alloy powder according to the present invention can be employed for build-up welding of a face part of a valve used in various internal combustion engines, automotive engines, steam turbines, heat exchangers, heating furnaces and the like. | ||
| 申请公布号 | US9365913(B2) | 申请公布日期 | 2016.06.14 |
| 申请号 | US201213463333 | 申请日期 | 2012.05.03 |
| 申请人 | DAIDO STEEL CO., LTD. | 发明人 | Imaizumi Kaoru;Ueta Shigeki |
| 分类号 | C22C1/04 | 主分类号 | C22C1/04 |
| 代理机构 | Greenblum & Bernstein, P.L.C. | 代理人 | Greenblum & Bernstein, P.L.C. |
| 主权项 | 1. A high-hardness hardfacing alloy powder, comprising: 1.18≦C≦3.0 mass %, 0.5≦Si≦5.0 mass %, 10.0≦Cr≦30.0 mass %, and 16.0<Mo≦40.0 mass %,with the balance being Co and unavoidable impurities, whereina total amount of Mo and Cr satisfies 40.0≦Mo+Cr≦70.0 mass % anda matrix of the high-hardness facing powder has both a Laves phase and a Cr-based carbide. | ||
| 地址 | Aichi JP | ||