| タイトル | A study of fatigue damage mechanisms in Waspaloy from 25 to 800 C |
| 著者（英） | Jayaraman, N.; Antolovich, S. D.; Lerch, B. A. |
| 著者所属（英） | Max-Planck-Inst. fuer Metallforschung|Georgia Inst. of Tech.|Cincinnati Univ. |
| 発行日 | 1984-09-15 |
| 言語 | eng |
| 内容記述 | The objective of the study was to examine the effect of various microstructures on the fatigue and damage accumulation behavior of Waspaloy, a nickel-base alloy commonly used in aircraft engines. Shearing was the dominant deformation mode in specimens with coarse grains and small (50-80 A) gamma prime particles, whereas Orowan looping was dominant in fine-grained specimens with large (about 900 A) gamma prime particles. At temperatures up to 500 C, cracks initiated transgranularly, while at 800 C the failure process was intergranular for both coarse-grained and fine-grained specimens. At temperatures above 500 C, a significant decrease in the fatigue life was observed for both coarse-grained and fine-grained material. |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 85A12098 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/394482 |
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