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↗
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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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ThO sub 2 -dispersion-strengthened nickel and nickel-molybdenum alloys produced by selective reduction.
Thorium dioxide strengthened nickel and nickel molybdenum alloys, discussing production via selective reduction, strength, creep rupture, stability and ductility characteristics
MOLYBDENUM ALLOY↗
Stress-rupture properties of tungsten wire from 1200 to 2500 deg F.
Stress rupture properties of tungsten wire at high temperatures, noting effect of primary recrystallization on microhardness, ductility and grain size
STRESS RUPTURE↗
Tests show that aluminum welds are improved by bead removal
Tests with 2218-T87 aluminum alloy plate indicate improvements in strength, ductility, fatigue properties, and burst pressure result when one or both of the top and bottom weld beads are removed. There is, however, a drop in yield strength. The consistency of test data is considerably improved by weld bead removal.
Hood, D. W.↗
Coating protects magnesium-lithium alloys against corrosion
Coating protects newly developed magnesium-lithium alloys against corrosion. The procedure includes heating the ingots in a salt bath and rolling them to the desired sheet thickness. The black coating, which is tough though thin and ductile, is derived mainly from chromium.
Source record↗
Aluminum-titanium hydride-boron carbide composite provides lightweight neutron shield material
Inexpensive lightweight neutron shield material has high strength and ductility and withstands high internal heat generation rates without excessive thermal stress. This composite material combines structural and thermal properties of aluminum, neutron moderating properties of titanium hydride, and neutron absorbing characteristics of boron carbide.
Poindexter, A. M.↗
Steel test panel helps control additives in pyrophosphate copper plating
Test panel helps control maximum tolerance level for plating solution contaminants. It provides low, medium, and high-current density areas such as exist in production plating, and plating is examined for uniformity of texture and ductility.
Hollar, W. T.↗
Thoriated tungsten tube provides improved high temperature thermocouple sheath
Thermocouple tubing of thoriated tungsten with a very fine grain structure produces a small-diameter sheath capable of operating up to 5000 degrees R in a hydrogen and graphite environment. This tubing remains ductile and resists both grain growth and carbiding even after prolonged exposure to temperature.
Zellner, G. J.↗
Development of protective coatings for chromium-base alloys Semiannual progress report
Feasibility of using ductile nickel-chromium alloy claddings to protect chromium alloy turbine vanes and blades
VANE↗
Radiation effects on creep rupture and fatigue strength of pure aluminum.
Creep rupture, fatigue strength and brittle- ductile transition of aluminum as affected by nuclear radiation
NUCLEAR RADIATION↗
Study of mechanical properties of uranium compounds
Study determines the mechanical properties, including brittleness and ductility of several uranium compounds. These include uranium dioxide, uranium sulfide, and uranium phosphide.
Beals, R. J.↗
Pre-weld heat treatment improves welds in Rene 41
Cooling of Rene 41 prior to welding reduces the incidence of cracking during post-weld heat treatment. The microstructure formed during the slow cooling rate favors elevated temperature ductility. Some vestiges of this microstructure are apparently retained during welding and thus enhance strain-age crack resistance in air.
Prager, M.↗
Some observations concerning the oxidation of the cobalt-base superalloy L-605 /HS-25/
Oxidation resistance and ductility of cobalt heat resistant alloys optimized by restriction of silicon and manganese content
Sandrock, G. D.↗
Investigation of the reinforcement of ductule metals with strong, high modulus discontinuous, brittle fibers Quarterly report, 1 May - 1 Aug. 1968
Factors affecting tensile strength of ductile metals reinforced with short, brittle fibers
Berry, J. M.↗
Effects of high-pressure hydrogen on storage vessel materials.
Tensile tests in high pressure hydrogen on various steels, discussing strength and ductility of notched and unnotched specimens
Chandler, W. T.↗
The application of directional solidification to a NASA nickel-base alloy /TAZ-8B/.
Directional solidification techniques applied to nickel base alloy /TAZ-8B/ improve grain orientation, ductility, tensile strength and stress-rupture life
Ashbrook, R. L.↗
Hot-cracking studies of Inconel 718 weld- heat-affected zones
Hot ductility tests, gas-tungsten-arc fillerless fusion tests, and circle patch-weld-restraint tests were conducted on Inconel 718 to better understand and correlate the weldability /resistance to hot cracking/ of the alloy. A correlation of the test results with composition, heat-treat condition, grain size, and microstructure was made.
Thompson, E. G.↗
Two-step rocket engine bipropellant valve concept
Initiating combustion of altitude control rocket engines in a precombustion chamber of ductile material reduces high pressure surges generated by hypergolic propellants. Two-step bipropellant valve concepts control initial propellant flow into precombustion chamber and subsequent full flow into main chamber.
Capps, J. E.↗