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Relationship of mechanical characteristics and microstructural features to the time-dependent edge notch sensitivity of inconel 718 sheet
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wilson, D. J. |
| Copyright Year | 1971 |
| Description | Time-dependent notch sensitivity of Inconel 718 sheet was observed at 900 F to 1200 F (482 - 649 C). It occurred when edge-notched specimens were loaded below the yield strength and smooth specimen tests showed that small amounts of creep consumed large rupture life fractions. The severity of the notch sensitivity was reduced by decreasing the solution temperature, increasing the time and/or temperature of aging and increasing the test temperature to 1400 F (760 C). Elimination of time-dependent notch sensitivity correlated with a change in dislocation motion mechanism from shearing to by-passing precipitate particles. |
| File Size | 3373489 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740018907 |
| Archival Resource Key | ark:/13960/t7cs0kf2w |
| Language | English |
| Publisher Date | 1971-01-01 |
| Access Restriction | Open |
| Subject Keyword | Materials, Metallic Mechanical Properties Time Dependence Yield Strength Notch Sensitivity Microstructure Inconel Trademark 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 |
