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Process for making a high toughness-high strength iron alloy
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Stephens, J. R. |
| Copyright Year | 1979 |
| Description | A steel alloy is produced by a process which includes using cold rolling at room temperature and subsequent heat treatment at temperatures ranging from 500 C to 650 C. The resulting alloys exhibits excellent strength and toughness characteristics at cryogenic temperatures. This alloy consists essentially of about 10 to 16 percent by weight nickel, to about 1.0 percent by weight aluminum, and 0 to about 3 percent by weight of at least one of the following additional elements: copper, lanthanum, niobium, tantalum, titanium, vanadium, yttrium, zirconium and the rare earth metals, with the balance being essentially iron. The improved alloy possesses a fracture toughness ranging from 200 to 230 ksi sq in. and yield strengths up to 230 ksi. |
| File Size | 361674 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790014100 |
| Archival Resource Key | ark:/13960/t7gr1qf9w |
| Language | English |
| Publisher Date | 1979-03-27 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Cold Rolling Heat Treatment High Strength Steels Aluminum Nickel Iron Alloys Fracture Strength Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
