| タイトル | Influence of precipitate morphology on intermediate temperature creep properties of a nickel-base superalloy single crystal |
| 著者（英） | Nathal, M. V.; Mackay, R. A.; Miner, R. V. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1989-01-01 |
| 言語 | eng |
| 内容記述 | The relative creep behavior of cuboidal (as-heat treated) and rafted (precrept at 1000 C) gamma-prime microstructures in the single-crystal Ni-based superalloy NASAIR 100 at 760 C was investigated using SEM and TEM examinations of materials at various stages of creep. It was found that, at high applied stresses, the crystals with cuboidal gamma-prime structure had both lower minimum creep rates and longer rupture lives than the crystals with lamellar gamma-prime. At lower stress levels, the initially cuboidal gamma-prime microstructure maintained a lower creep rate, but exhibited a similar rupture life compared to the prerafted crystals. |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 89A26872 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/365319 |
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