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Resistance of a gamma/gamma prime - delta directionally solidified eutectic alloy to recrystallization
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Scheuermann, C. M. Andrews, C. W. Tewari, S. N. |
| Copyright Year | 1975 |
| Description | The lamellar directionally solidified nickel-base eutectic alloy gamma/gamma prime-delta has potential as an advanced turbine blade material. The microstructural stability of this alloy was investigated. Specimens were plastically deformed by uniform compression or Brinell indentation, then annealed between 705 and 1120 C. Microstructural changes observed after annealing included gamma prime coarsening, pinch-off and spheroidization of delta lamellae, and the appearance of an unidentified blocky phase in surface layers. All but the first of these was localized in severely deformed regions, suggesting that microstructural instability is not a serious problem in the use of this alloy. |
| File Size | 24025470 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760006182 |
| Archival Resource Key | ark:/13960/t8sb8vn5w |
| Language | English |
| Publisher Date | 1975-12-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Annealing Turbine Blades Structural Stability Heat Resistant Alloys Recrystallization Eutectic Alloys Plastic Deformation Microstructure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
