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Generation of long time creep data on refractory alloys at elevated temperatures (Document No: 19720007867)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1970 |
| Description | Creep tests were conducted on two tantalum alloys (ASTAR 811C and T-111 alloy), on a molybdenum alloy (TZM), and on CVD tungsten. The T-111 alloy 1% creep life data have been subjected to Manson's station function analysis, and the progress on this analysis is described. In another test program, the behavior of T-111 alloy with continuously varying temperatures and stresses has been studied. The results indicated that the previously described analysis predicts the observed creep behavior with reasonable accuracy. In addition to the T-111 test program, conventional 1% creep life data have been obtained for ASTAR 811C alloy. Previously observed effects of heat treatment on the creep strength of this material have been discussed and a model involving carbide strengthening primarily at the grain boundaries, rather than in a classical dispersion hardening mechanism, has been proposed to explain the observed results. |
| File Size | 3082937 |
| Page Count | 93 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720007867 |
| Archival Resource Key | ark:/13960/t5r833c5g |
| Language | English |
| Publisher Date | 1970-11-16 |
| Access Restriction | Open |
| Subject Keyword | Materials, Metallic 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 |
