| タイトル | Conditions Of Directional Solidification Affect Superalloy |
| 著者（英） | Alter, W. S.; Parr, R. A.; Schmidt, D. D.; Hamilton, W. D. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1992-11-01 |
| 言語 | eng |
| 内容記述 | Report describes experiments to determine effects of gradient of temperature and rate of solidification on microstructure and fatigue properties of nickel-based superalloy MAR-M246(Hf). Enhancement of properties extends lifespans of objects, including turbo-pump blades of Space Shuttle Main Engines. Results indicate significant improvements in fatigue properties derived through manipulation of parameters of directional solidification. Particularly MAR-M246(Hf) for turbine blades contains small, well-dispersed blocky carbide and microstructure with small distances between dendrite arms, and without eutectic phase. |
| NASA分類 | MATERIALS |
| レポートNO | 92B10693
MFS-27231 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/331826 |
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