Preliminary evaluation of tungsten alloy fiber-nickel-base alloy composites for turbojet engine applications
Donald W. Petrasek, Robert A. Signorelli, Lewis Research Center, United States. National Aeronautics and Space Administration
National Aeronautics and Space Administration, 1970 - Technology & Engineering - 26 pages
Evaluation of tungsten alloy fiber-nickel base alloy composites for turbojet engine application.
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1000-hour rupture strength 2-percent thoria 218 CS tungsten 70 volume percent Binder material cast nickel alloys chromium cladding material composite material composite specimens composites at 2000 containing 70 volume Conventional lamp filament density fiber composite fiber contents ranging function of rupture helium hr percent psi impact resistance impact strength impact test inch inch-pounds lamp filament wire layer of Inconel Lewis Research Center matrix material MN/m MN/m2 hr percent nickel alloy composite oxidation and impact oxidation resistance oxidizing environment percent psi Test percent thoria wire psi Test temperature reaction zone refractory metal fiber rhenium rhenium-2-percent thoria wire shown in figure specific rupture strength strength at 2000 stress-rupture properties Stress-rupture tests superalloy composites superalloys at 2000 tensile strengths tested at 2000 tests were conducted thoria wire composite tungsten alloy fiber tungsten alloy wire tungsten-2-percent thoria wire tungsten-5-percent rhenium-2-percent thoria tungsten-thoria wire turbine bucket applications turbojet turbojet engine volume percent fiber