| タイトル | Effect of casting geometry on mechanical properties of two nickel-base superalloys |
| 本文（外部サイト） | http://hdl.handle.net/2060/19760019229 |
| 著者（英） | Johnston, J. R.; Collins, H. E.; Dreshfield, R. L. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1976-06-01 |
| 言語 | eng |
| 内容記述 | An investigation was performed to determine mechanical properties of two rhenium-free modifications of alloy TRW, and to evaluate the suitability of the alloy for use in a small integrally cast turbine rotor. The two alloys were initially developed using stress rupture properties of specimens machined from solid gas turbine blades. Properties in this investigation were determined from cast to size bars and bars cut from 3.8 by 7.6 by 17.8 cm blocks. Specimens machined from blocks had inferior tensile strength and always had markedly poorer rupture lives than cast to size bars. At 1,000 C the cast to size bars had shorter rupture lives than those machined from blades. Alloy R generally had better properties than alloy S in the conditions evaluated. The results show the importance of casting geometry on mechanical properties of nickel base superalloys and suggest that the geometry of a component can be simulated when developing alloys for that component. |
| NASA分類 | METALLIC MATERIALS |
| レポートNO | 76N26317
NASA-TM-X-3386
E-8661 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/185466 |
