Commercial
Aerospace & Defence
其定义
The blade runs in gas above the alloy's own melting point. It survives because of internal cooling channels, a ceramic thermal barrier, and rhenium and hafnium in the alloy.
材料清单
放大规模 →数量为 per blade set参考区间
将这些数据理解为"大致如此，存在一定误差"。每家制造商的设计各有不同，且随着工程师逐步减少对高价物料的用量，数据会随时间下降。
| 材料 | 低 | 高 | 单位 | 基准 |
|---|---|---|---|---|
| Cobalt 关键 | 痕量 | 痕量 | kg | Alloy matrix |
| Hafnium 关键 | 痕量 | 痕量 | kg | Grain-boundary strengthening |
| Nickel 关键 Typically 60% or more of the alloy. | 痕量 | 痕量 | kg | Superalloy base |
| Rhenium 关键 A few percent of a metal produced in tens of tonnes a year worldwide. | 痕量 | 痕量 | kg | 3-6% of second and third generation superalloys |
| Tantalum 关键 | 痕量 | 痕量 | kg | Solid-solution strengthening |
| Yttrium 关键 | 痕量 | 痕量 | kg | Yttria-stabilised zirconia coating |
Indicative range compiled from published technology studies and chemistry; verify against a manufacturer specification before use. 标注为"微量"的行表示该物料含量极低，无法以质量形式有效表达——其制约因素在于纯度或供应商数量，而非吨位。