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Effect of cyclic conditions on the dynamic oxidation of gas turbine superalloys
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Johnston, J. R. Ashbrook, R. L. |
| Copyright Year | 1974 |
| Description | The effects of operating parameters of a dynamic apparatus used to study oxidation and thermal fatigue of gas turbine materials were studied. IN-100, TD-NiCr, and WI-52 were tested at a maximum temperature of 1,090 deg C. Heating time per cycle was varied from 1/20 hr to 10 hr. Minimum temperatures between heating cycles were room temperature, 430 deg, and 650 deg C. Cooling air velocities were zero, Mach 0.7, and Mach 1. Increasing the number of cycles for a given time at temperature increased weight loss. Thermal fatigue was related to number of cycles more than to time at temperature. |
| File Size | 1054621 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770007310 |
| Archival Resource Key | ark:/13960/t4zh1dg87 |
| Language | English |
| Publisher Date | 1974-04-01 |
| Access Restriction | Open |
| Subject Keyword | Metallic Materials Air Cooling Gas Turbines Heat Resistant Alloys Fatigue Materials Thermal Cycling Tests Oxidation Cracking Fracturing Thermal Stresses 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 |
