High-temperature cobalt-tungsten alloys for aerospace applications.
High temperature capability and workability of cobalt-tungsten alloys for aerospace applications
COBALT 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 Cathodic Electrocatalysts for Use in Low Temperature 2hz/o2 Fuel Cells with an Alkaline Electrolyte Quarterly Report, 1 Jan. - 31 Mar. 1967
Carbides, nitrocarbides of nickel, cobalt alloys, and nickel-cobalt alloys evaluated for electrocatalysts in low temperature hydrogen peroxide fuel cells with alkaline electrolyte
HYDROGEN PEROXIDE↗
Cold reduction as a means of reducing embrittlement of a cobalt-base alloy /L-605/
Prior cold reduction for improved room temperature tensile ductility of cobalt-base alloy
TENSILE STRENGTH↗
Investigation of fiber strengthened cast cobalt-base alloys Final report, 14 Dec. 1966 - 15 Jun. 1967
Whisker reinforcement of cobalt-base alloys
REINFORCING FIBER↗
Effect of temperature and pressure on cavitation damage to a cobalt base alloy in sodium.
Temperature and pressure effect on cobalt base alloy cavitation in liquid sodium, using vibratory apparatus and loss rate contour diagram
Johnston, J. R.↗
Thermal fatigue data on 15 nickel- and cobalt-base alloys
Thermal fatigue data on 15 nickel and cobalt base alloys
Howes, M. A. H.↗
Effect of variations in silicon and iron content on embrittlement of a cobalt-base alloy /l-605/
Effect of variations in silicon and iron content on embrittlement of cobalt-base alloy /L-605/
SILICON↗
Modification of high-temperature cobalt- tungsten alloys for improved stability
Modification of high temperature cobalt-tungsten alloys for improved stability
Dreshfield, R. L.↗
Investigation of the fiber reinforcement of a cobalt base alloy for application at elevated temperature
Technique developed for incorporating alumina and silicon carbide fibers in cobalt base alloy for application at high temperatures
COBALT ALLOY↗
Evaluation of a cobalt-base alloy, HS-31, made by extrusion of prealloyed powders
Evaluation of cobalt base alloy made by extrusion of prealloyed powders
Ashbrook, R. L.↗
A review of NASA research to determine the resistance of materials to cavitation damage in liquid metal environments
Cavitation damage resistance of iron alloys, nickel alloys, and cobalt alloys in liquid sodium and mercury - review of NASA program
Freche, J. C.↗
Effect of temperature and pressure on cavitation damage to a cobalt base alloy in sodium
Effect of temperature and pressure on cavitation damage to cobalt base alloy in sodium
Johnston, J. R.↗
Oxidation and thermal fatigue cracking of nickel- and cobalt-base alloys in a high velocity gas stream
Oxidation resistance and thermal fatigue cracking of nickel and cobalt base alloys in transonic gas streams
Ashbrook, R. L.↗
Axial and torsional fatigue behavior of a cobalt-base alloy
In order to develop elevated temperature multiaxial fatigue life prediction models for the wrought cobalt-base alloy, Haynes 188, a multiaxial fatigue data base is required. To satisfy this need, an elevated temperature experimental program on Haynes 188 consisting of axial, torsional, inphase and out of phase axial-torsional fatigue experiments was designed. Elevated temperature axial and torsional fatigue experiments were conducted under strain control on thin wall tubular specimens of Haynes 188 in air. Test results are given.
Bonacuse, Peter J.↗
Development of procedures for producing dispersion-strengthened cobalt base alloys by the flash drying selective reduction process
Flash drying selective reduction process for producing dispersion-strengthened cobalt base alloys
Triffleman, B. H.↗
Effects of cold work and aging on the substructure and precipitation phenomena in the cobalt-base alloy L-605
Using thin-foil electron microscopy to study effects of cold working and aging on substructure and precipitation in cobalt-base alloy L-605
Andrews, C. W.↗
Marked influence of crystal structure on the friction and wear characteristics of cobalt and cobalt-base alloys in vacuum to 10-9 millimeter of mercury. i- polycrystalline and single crystal cobalt
Friction and wear characteristics for polycrystalline cobalt sliding on various materials in high vacuum
SLIDING FRICTION↗
Submersion Quenching of Undercooled Liquid Metals in an Electrostatic Levitator
The NASA Marshall Space Flight Center (MSFC) electrostatic levitation (ESL) laboratory has a long history of providing materials research and thermophysical property data. The laboratory has recently added a new capability, a rapid quench system. This system allows samples to be dropped into a quench vessel that can be filled with a low melting point material, such as a gallium or indium alloy. Thereby allowing rapid quenching of undercooled liquid metals and alloys. This is the first submersion quench system inside an electrostatic levitator. The system has been tested successfully with samples of zirconium, iron-cobalt alloys, titanium-zirconium-nickel alloys, and silicon-cobalt alloys. This rapid quench system will allow materials science studies of undercooled materials and new materials development, including studies of metastable phases and transient microstructures. In this presentation, the system is described and some initial results are presented.
SanSoucie, Michael P.↗