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Application of superalloy powder metallurgy for aircraft engines
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miner Jr., R. V. Dreshfield, R. L. |
| Copyright Year | 1980 |
| Description | In the last decade, Government/Industry programs have advanced powder metallurgy-near-net-shape technology to permit the use of hot isostatic pressed (HIP) turbine disks in the commercial aircraft fleet. These disks offer a 30% savings of input weight and an 8% savings in cost compared in cast-and-wrought disks. Similar savings were demonstrated for other rotating engine components. A compressor rotor fabricated from hot-die-forged-HIP superalloy billets revealed input weight savings of 54% and cost savings of 35% compared to cast-and-wrought parts. Engine components can be produced from compositions such as Rene 95 and Astroloy by conventional casting and forging, by forging of HIP powder billets, or by direct consolidation of powder by HIP. However, each process produces differences in microstructure or introduces different defects in the parts. As a result, their mechanical properties are not necessarily identical. Acceptance methods should be developed which recognize and account for the differences. |
| File Size | 2487277 |
| Page Count | 23 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800013002 |
| Archival Resource Key | ark:/13960/t55f3mx59 |
| Language | English |
| Publisher Date | 1980-01-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Hot Pressing Compressor Rotors Heat Resistant Alloys Rene 95 Mechanical Properties Astroloy Trademark Isostatic Pressure Aircraft Engines Powder Metallurgy Engine Parts Turbine Engines Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
