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Niobium-aluminum base alloys having improved, high temperature oxidation resistance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1991 |
| Description | A niobium-aluminum base alloy having improved oxidation resistance at high temperatures and consisting essentially of 48%-52% niobium, 36%-42% aluminum, 4%-10% chromium, 0%-2%, more preferably 1%-2%, silicon and/or tungsten with tungsten being preferred, and 0.1%-2.0% of a rare earth selected from the group consisting of yttrium, ytterbium and erbium. Parabolic oxidation rates, k.sub.p, at 1200.degree. C. range from about 0.006 to 0.032 (mg/cm.sup.2).sup.2 /hr. The new alloys also exhibit excellent cyclic oxidation resistance. |
| File Size | 506441 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080007418 |
| Archival Resource Key | ark:/13960/t76t5kc35 |
| Language | English |
| Publisher Date | 1991-01-08 |
| Access Restriction | Open |
| Subject Keyword | Metals And Metallic Materials Chromium Aluminum Alloys Patents Niobium Alloys Oxidation Resistance High Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
