Loading...
Please wait, while we are loading the content...
Similar Documents
Effects of tin on microstructure and mechanical behavior of inconel 718
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Maurer, G. A. Johnson, W. A. Dreshfield, R. L. |
| Copyright Year | 1984 |
| Description | Columbium, for which the United States is 100 percent import reliant, is of strategic importance to the U.S. aerospace industry. A major amount of the Cb is used in Inconel 718. Should Cb sources be disrupted, it may be desired to use a grade of Cb melting stock having greater Sn content then the preferred vacuum rade. Additions of Sn to Inconel 718 were varied from none added to 1 wt %. The Sn additions below 800 ppm had no detrimental effects on 650 C stress rupture behavior; however, 1-wt % Sn severely degraded both life and ductility. Additions of Sn in excess of 200 ppm were slightly detrimental to the 425 C tensile yield strength and ductility. The Sn additions had no effect on the microstructure of Inconel 718 even after stress rupture testing for over 6000 hr at 650 C. |
| File Size | 1499389 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850003821 |
| Archival Resource Key | ark:/13960/t52g2k25q |
| Language | English |
| Publisher Date | 1984-01-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Ductility Life Durability Tensile Tests Mechanical Properties Creep Rupture Strength High Temperature Electron Microscopy X Ray Diffraction Niobium Tensile Strength Inconel Trademark Microscopy Heat Resistant Alloys Strategic Materials Tin Microstructure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
