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A preliminary mechanical property and stress corrosion evaluation of vim-var work strengthened and direct aged inconel 718 bar material
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Montano, J. W. |
| Copyright Year | 1987 |
| Description | This report presents a preliminary mechanical property and stress corrosion evaluation of double melted (vacuum induction melted (VIM), and vacuum arc remelted (VAR)), solution treated, work strengthened and direct aged Inconel 718 alloy bar (5.50 in. (13.97 cm) diameter). Two sets of tensile specimens, one direct single aged and the other direct double aged, were tested at ambient temperature in both the longitudinal and transverse directions. Longitudinal tensile and yield strengths in excess of 200 ksi (1378.96 MPa) and 168 ksi (1158.33 MPa), respectively, were realized at ambient temperature, for the direct double aged specimen. No failures occurred in the single or double edged longitudinal and transverse tensile specimens stressed to 75 and 100 percent of their respective yield strengths and exposed to a salt fog environment for 180 days. Tensile tests performed after the stress corrosion test showed no mechanical property degradation. |
| File Size | 8817615 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870016783 |
| Archival Resource Key | ark:/13960/t3jx3891v |
| Language | English |
| Publisher Date | 1987-04-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Evaluation Stress Corrosion Vacuum Melting Ambient Temperature Tensile Tests Mechanical Properties Yield Strength Aging Metallurgy Inconel Trademark Vacuum Furnaces Arc Melting Induction Heating 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 |
