| タイトル | On the cyclic stress-strain behaviour of a Ni-base superalloy at room temperature |
| 著者（英） | Singh, Vakil; Wahi, R. P.; Yun, H. M.; Chen, W. |
| 著者所属（英） | NASA Lewis Research Center|Technische Univ.|Hahn-Meitner-Inst. fuer Kernforschung |
| 発行日 | 1988-01-01 |
| 言語 | eng |
| 内容記述 | The cyclic stress-strain behavior of Nimonic alloy PE16 was studied at room temperature and at different aging conditions to determine whether the plateau in the cyclic stress-strain curve (CSSC) reported by Arbuthnot (1982) is typical of the room temperature behavior and/or some specific initial microstructural states. Specimen blanks were heat-treated in batches in Ar/H2 (98/2) atmosphere to produce gamma-prime precipitates of different average sizes, but with the volume fraction of gamma-prime precipitates kept constant at about 7 percent at all the heat-treatment conditions. Total axial strain controlled LCF tests were conducted under fully reversed loading (R = -1) at a constant strain rate of 0.004/s, using a servohydraulic machine. The load response in tension and compression was recorded continually, and stress-strain hysteresis loops were recorded at frequent intervals. In the present investigation, the CSSCs of the P16 alloy at room temperature did not display the plateaus reported by Arbuthnot. |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 88A24521 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/372648 |
|
