Development of dispersion strengthened tantalum base alloy Quarterly progress report no. 6, Feb. 20 - May 19, 1965
Dispersion strengthened tantalum base alloys for use in advanced spacecraft power systems - metallurgy
TANTALUM ALLOY↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Development of high-temperature caromium alloys Semiannual report no. 1
High temperature chromium alloys for air breathing engines
CHROMIUM ALLOY↗
Development of dispersion strengthened tantalum base alloy Seventh quarterly report, May 20 - Aug. 20, 1965
Phase identification, morphology, and evaluation of dispersion strengthened tantalum base alloys
TANTALUM ALLOY↗
Development of dispersion strengthened tantalum base alloy Eighth quarterly progress report, 20 Aug. - 20 Nov. 1965
Phase identification and morphology studies of dispersion hardened tantalum base alloys for advanced space power uses
DISPERSION HARDENING↗
Development of dispersion strengthened tantalum base alloy Quarterly progress report, 20 Nov. 1965 - 20 Feb. 1966
Welding, aging, and oxygen contamination effects on dispersion strengthened tantalum base alloys
TANTALUM ALLOY↗
Development of high-temperature chromium alloys Semiannual report
Chromium used as a base for high temperature structural alloys
CHROMIUM↗
Development of dispersion strengthened tantalum base alloy Quarterly progress report, 20 Aug. - 20 Nov. 1966
Dispersion strengthened tantalum base alloys for use in advanced space power systems
Buckman, R. W., Jr.↗
Development of dispersion strengthened tantalum base alloy Quarterly progress report, Nov. 20, 1966 - Feb. 20, 1967
Grain size and annealing temperature effects on creep properties of dispersion strengthened tantalum base alloys
Buckman, R. W., Jr.↗
Development of a high strength aluminum alloy, readily weldable in plate thicknesses, and suitable for application at -423 F /-253 C/ Final report, Jun. 28, 1963 - Jun. 30, 1967
Effects of composition and thermal treatment on aluminum copper, and aluminum zinc magnesium alloys
Anderson, W. A.↗
Development of dispersion strengthened tantalum base alloy Quarterly progress report, 20 Feb. - 20 May 1967
Creep properties, brittleness, hardness, and microstructure of dispersion strengthed tantalum base alloys
Buckman, R. W., Jr.↗
Research and development for fabricating a simulated titanium alloy base gore segment, lower bulkhead, for the S-1C fuel tank, volume 1 Final report
Simulated titanium alloy gore segment lower bulkhead for Saturn S-1C fuel tank
Source record↗
Development of a dispersion strengthened chromium alloy
Zirconium dioxide chromium alloy powder dispersions
Bryant, W. A.↗
Development of high-temperature chromium alloys Final report
Determining mechanical properties and air-oxidation behavior of chromium-base compositions at temperatures up to 2400 F
Clark, J. W.↗
Development of ductile high strength chromium alloys
Heat treatment of carbide and boride strengthened chromium alloys to improve tensile and creep rupture strength
Filippi, A. M.↗
Development of a chromium-thoria alloy
Low temperature ductility and high temperature strength of pure chromium and chromium-thoria alloy prepared from vapor deposited powders
Veigel, N. D.↗
Tensile and creep properties of titanium-vanadium, titanium-molybdenum, and titanium-niobium alloys
Tensile and creep properties of experimental beta-titanium alloys were determined. Titanium-vanadium alloys had substantially greater tensile and creep strength than the titanium-niobium and titanium-molybdenum alloys tested. Specific tensile strengths of several titanium-vanadium-aluminum-silicon alloys were equivalent or superior to those of commercial titanium alloys to temperatures of 650 C. The Ti-50V-3Al-1Si alloy had the best balance of tensile strength, creep strength, and metallurgical stability. Its 500 C creep strength was far superior to that of a widely used commercial titanium alloy, Ti-6Al-4V, and almost equivalent to that of newly developed commercial titanium alloys.
Gray, H. R.↗
Experimental development of processes to produce homogenized alloys of immiscible metals, phase 3
An experimental drop tower package was designed and built for use in a drop tower. This effort consisted of a thermal analysis, container/heater fabrication, and assembly of an expulsion device for rapid quenching of heated specimens during low gravity conditions. Six gallium bismuth specimens with compositions in the immiscibility region (50 a/o of each element) were processed in the experimental package: four during low gravity conditions and two under a one gravity environment. One of the one gravity processed specimens did not have telemetry data and was subsequently deleted for analysis since the processing conditions were not known. Metallurgical, Hall effect, resistivity, and superconductivity examinations were performed on the five specimens. Examination of the specimens showed that the gallium was dispersed in the bismuth. The low gravity processed specimens showed a relatively uniform distribution of gallium, with particle sizes of 1 micrometer or less, in contrast to the one gravity control specimen. Comparison of the cooling rates of the dropped specimens versus microstructure indicated that low cooling rates are more desirable.
Reger, J. L.↗
Predicting lifetime of cast parts
Life expectancy of cast aluminum machine parts can be predicted accurately from fatigue tests at 78 K on notched specimens of aluminum alloy. Method was developed for rocket engine turbopump parts made of high strength, heat treatable alloy with high silicon content; however, technique is applicable to other aluminum casting alloys.
Cooper, R. A.↗