| 发明名称 |
NICKEL ALLOY |
| 摘要 |
A nickel-base alloy having the following composition (in weight percent unless otherwise stated): Cr 10.5-15.0; Co 1.7-8.8; Fe 0-5.9; Si 0-0.65; Mn 0-0.65; Mo 0.3-2.3; W 2.3-4.4; Al 2.7-4.1; Nb 1.0-4.2; Ti 1.0-3.0; Ta 2.0-5.0; Hf 0.0-0.6; C 0.02-0.06; B 0.015-0.035; Zr 0.035-0.11; S<20 ppm; P<60 ppm; the balance being Ni and incidental impurities. The alloy has an improved combination of properties (principally resistance to surface environmental damage and dwell fatigue crack growth) compared with known alloys, and is intended to operate for prolonged periods of time above 700° C., and up to peak temperatures of 800° C. |
| 申请公布号 |
US2014348689(A1) |
申请公布日期 |
2014.11.27 |
| 申请号 |
US201414196630 |
申请日期 |
2014.03.04 |
| 申请人 |
ROLLS-ROYCE PLC |
发明人 |
HARDY Mark Christopher;STONE Howard James;MIGNANELLI Paul Michael;CONDUIT Bryce David;CONDUIT Gareth John |
| 分类号 |
C22C19/05;B22F3/24;B22F3/17 |
主分类号 |
C22C19/05 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A nickel-base alloy having the following composition (in weight percent unless otherwise stated): Cr 10.5-15.0; Co 1.7-8.8; Fe 0-5.9; Si 0-0.65; Mn 0-0.65; Mo 0.3-2.3; W 2.3-4.4; Al 2.7-4.1; Nb 1.0-4.2; Ti 1.0-3.0; Ta 2.0-5.0; Hf 0.0-0.6; C 0.02-0.06; B 0.015-0.035; Zr 0.035-0.11; S<20 ppm; P<60 ppm; the balance being Ni and incidental impurities. |
| 地址 |
London GB |
