Solid-state welding of TD-nickel bar
Solid state butt and lap joint welding of TD- nickel bar, evaluating performance by stress rupture and shear tests
Holko, K. H.↗
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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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Miniature fuel cells relieve gas pressure in sealed batteries
Miniature fuel cells within sealed silver zinc batteries consume evolved hydrogen and oxygen rapidly, preventing pressure rupturing. They do not significantly increase battery weight and they operate in all battery life phases. Complete gas pressure control requires two fuel cells during all phases of operation of silver zinc batteries.
Frank, H. A.↗
Practical method of diffusion-welding steel plate in air
Method is ideal for critical service requirements where parent metal properties are equaled in notch toughness, stress rupture and other characteristics. Welding technique variations may be used on a variety of materials, such as carbon steels, alloy steels, stainless steels, ceramics, and reactive and refractory materials.
Holko, K. H.↗
Nickel-base alloy containing Mo-W-Al-Cr- Ta-Zr-C-Nb-B Patent
Nickel base alloy with resistance to oxidation at high temperatures and superior stress-rupture properties
Freche, J. C.↗
Fabrication and structural evaluation for regeneratively cooled panels
Fabrication and structural evaluation for regeneratively cooled panels - tensile tests, creep rupture, and flexure tests of brazed plate-fin specimens
Demogenes, C.↗
Research on mechanisms of alloy strengthening. 1 - Strengthening through fine particle dispersion. 2 - Control of structure and properties by means of rapid quenching of liquid metals /splat cooling/ Semiannual report
Tensile, fatigue, and creep rupture properties of extruded nickel-based aluminum, titanium carbide, and beryllium oxide alloys and aluminum-based silicon, copper, and iron alloys
Grant, N. J.↗
Creep behavior of electron-beam-melted rhenium
Comparison of creep-rupture properties of electron beam-melted polycrystalline and powder- metallurgy rhenium sheets at 2200 to 4200 F and 4 to 40 ksi
Raffo, P. L.↗
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.↗
Thermomechanical processing of the nickel-base alloy U-700
Thermomechanical processing of nickel alloy in relation to yield and creep rupture strength
Blankenship, C. P.↗
Deformation effects on a dispersion hardened alloys
Creep and creep rupture deformation and tensile tests of nickel alloys
Petrovic, J. J.↗
Development of a platinum-thorium oxide alloy for resistojet thruster use
Platinum-thorium oxide alloy for resistojet thruster showing increase in stress rupture life
Albert, H. J.↗
Evaluation of a cobalt-base alloy, HS-31, made by extrusion of prealloyed powders
Tensile and stress rupture tests of Co base alloy bars extruded from prealloyed powders made by Ar gas atomization
Ashbrook, R. L.↗
Strain inhomogeneities, molecular chain scission and stress-deformation in polymers
Bond rupture and fracture in semicrystalline polymers, noting agreement with random length molecular tie chain scission model
Devries, K. L.↗
EPR-atomic scale experimental stress analysis
Electron paramagnetic resonance atomic scale stress analysis of high polymer fibers and rubber, measuring chain scission and bond rupture for different loading histories
Devries, K. L.↗
An experimental investigation of some models of polymer fracture
Atomic bond rupture and molecular mechanisms of polymer fracture, using EPR spectroscopy
Devries, K. L.↗
A micro-macro correlation of ozone-induced fracture in rubber
Molecular bond rupture and strain energy release rates correlation during ozone cracking of rubber from electron paramagnetic resonance and stress elongation measurements
Devries, K. L.↗
Creep behavior of electron-beam-melted rhenium
Creep rupture behavior of electron beam melted polycrystalline sheet and powdered rhenium
Raffo, P. L.↗
Application of powder metallurgy to an advanced-temperature nickel-base alloy, NASA-TRW 6-A
Bar stock of the NASA-TRW 6-A alloy was made by prealloyed powder techniques and its properties evaluated over a range of temperatures. Room temperature ultimate tensile strength was 1894 MN/sq m (274 500 psi). The as-extruded powder product showed substantial improvements in strength over the cast alloy up to 649 C (1200 F) and superplasticity at 1093 C (2000 F). Both conventional and autoclave heat treatments were applied to the extruded powder product. The conventional heat treatment was effective in increasing rupture life at 649 and 704 C (1200 and 1300 F); the autoclave heat treatment, at 760 and 816 C (1400 and 1500 F).
Freche, J. C.↗