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Effects of sigma-phase formation on some mechanical properties of a wrought nickel-base superalloy (in-100)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ashbrook, R. L. Dreshfield, R. L. |
| Copyright Year | 1974 |
| Description | The effect of sigma phase formation on an extruded and forged nickel base superalloy with the composition of the casting alloy IN-100 was studied. By adding only aluminum and titanium to remelt stock, three compositions were produced which had varying propensities for sigma formation. These compositions were given a four step heat treatment and were stress-ruptured or tensile tested. The very sigma prone composition had a shorter rupture life than the sigma-free or moderately sigma prone compositions when tested at 843 and 885 C. Elongation in room temperature tensile tests was considerably lower for the very sigma prone composition than for the other two wrought compositions after prolonged exposure at 732 or 843 C. |
| File Size | 5130075 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740015002 |
| Archival Resource Key | ark:/13960/t4fn5z15t |
| Language | English |
| Publisher Date | 1974-05-01 |
| Access Restriction | Open |
| Subject Keyword | Materials, Metallic Phase Diagrams Nickel Alloys Heat Resistant Alloys Tensile Tests Mechanical Properties Creep Rupture Strength Chemical Composition 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 |
