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High-temperature, low-cycle fatigue of advanced copper-base alloys for rocket nozzles. part 2: nasa 1.1, glidcop, and sputtered copper alloys
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Berling, J. T. Conway, J. B. Stentz, R. H. |
| Copyright Year | 1974 |
| Description | Short-term tensile and low-cycle fatigue data are reported for five advance copper-base alloys: Sputtered Zr-Cu as received, sputtered Zr-Cu heat-treated, Glidcop AL-10, and NASA alloys 1-1A and 1-1B. Tensile tests were performed in argon at 538 C using an axial strain rate of 0.002/sec. Yield strength and ultimate tensile strength data are reported along with reduction in area values. Axial strain controlled low-cycle fatigue tests were performed in argon at 538C using an axial strain rate of 0.002/sec to define the fatigue life over the range from 100 to 3000 cycles for the five materials studied. It was found that the fatigue characteristics of the NASA 1-1A and NASA 1-1B compositions are identical and represent fatique life values which are much greater than those for the other materials tested. The effect of temperature on NASA 1-1B alloy at a strain rate of 0.002/sec was evaluated along with the effect of strain rates of 0.0004 and 0.01/sec at 538 C. Hold-time data are reported for the NASA 1-1B alloy at 538 C using 5 minute hold periods in tension only and compression only at two different strain range values. Hold periods in tension were much more detrimental than hold periods in compression. |
| File Size | 1078985 |
| Page Count | 51 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750003004 |
| Archival Resource Key | ark:/13960/t3615t141 |
| Language | English |
| Publisher Date | 1974-11-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Fatigue Tests Rocket Nozzles Thermal Resistance Copper Alloys Fatigue Materials Stress Cycles Tensile Tests Thermal Conductivity High Temperature Environments Thermal Stresses Tensile Strength Axial Strain 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 |
