Elasto-plastic cracked plates in plane strain.
Plane strain and stress compared for elastoplastic cracked plate in work hardening tension
Swedlow, J. L.↗
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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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Effect of composition and thermal treatments on the weldability of nickel-base 718 alloy.
Composition and thermal treatment effects on weldability of precipitation hardened Ni base alloy, analyzing heat affected zone cracking sensitivity
Steinman, J. B.↗
Mechanism and kinetics of aging in Inconel 718
Age hardening in Inconel 718 is investigated using Brinell hardness measurements. Formation of a precipitate causes an increase in hardness.
Hensley, W. E.↗
High-strength magnetic materials
Two new precipitation-hardened magnetic alloys are suitable for operation in 800 to 1600 deg F range. One is a martensitic alloy and the other a cobalt-based alloy. They possess improved creep resistance and have application in high temperature inductors and alternators.
Detert, K.↗
Properties of cryogenically worked materials Interim report
Cryogenically worked materials during strain hardening
Brown, H. J.↗
Embrittlement of 4130 steel by low-pressure gaseous hydrogen
Hardened steel embrittlement in low pressure hydrogen caused by crack growth as function of temperature
Nelson, H. G.↗
Computer program for predicting creep behavior of bodies of revolution
Computer program, CRAB, uses finite-element method to calculate creep behavior and predict steady-state stresses in an arbitrary body of revolution subjected to a time-dependent axisymmetric load. Creep strains follow a time hardening law and a Prandtl-Reuss stress-strain relationship.
Adams, R.↗
Metal alloy resistivity measurements at very low temperatures
High speed, automated system accurately measures to approximately one percent in three minutes. System identifies materials having constant thermal or electric conductivity, predicts new material properties, develops alloys in accordance with desired specifications, and develops nondestructive devices for measuring precipitation hardening.
Childs, G. E.↗
Ion implantation reduces radiation sensitivity of metal oxide silicon /MOS/ devices
Implanting nitrogen ions improves hardening of silicon oxides 30 percent to 60 percent against ionizing radiation effects. Process reduces sensitivity, but retains stability normally shown by interfaces between silicon and thermally grown oxides.
Source record↗
Precipitation strengthened tantalum base alloy, ASTAR-811C
Mechanical properties determined for precipitation hardened tantalum base alloy /ASTAR-811C/ for potential use in Rankine cycle nuclear power systems
Buckman, R. W., Jr.↗
Gyro bearing improvement program, tasks 1 to 6 Final report
Surface evaluation of stainless steel gyro bearings manufactured by various hardening techniques
Allen, S.↗
Stress analysis of thin elasto-plastic shells
Stress analysis of thin shells with large deflections loaded into strain hardening range
Hyman, B. I.↗
Dielectric molding apparatus Patent
Dielectric apparatus for heating, fusing, and hardening of organic matrix to form plastic material into shaped product
King, C. B.↗
Design, manufacture and testing of a TD nickel-chromium structural assembly
Development and fabrication of precipitation hardened TD NiCr structures for use in high temperature environments
Johnson, R., Jr.↗
Properties of cryogenically worked materials Final report
Steel and cobalt-nickel alloy compression and corrosion tests after precipitation hardening at cryogenic temperatures for increased yield strength and corrosion resistance
Herzog, R. G.↗
Stress analysis of thin elasto-plastic shells
Stress analysis of thin elastoplastic shells with large displacements loaded into strain hardening range, assuming plastic strain incompressibility
Hyman, B.↗
The design of a weather satellite for the radiation environment - A case history
Spacecraft systems radiation hardening design, discussing Tiros satellite mission hazards and space exposure prediction for electronic parts, using flow chart rationale
Holmes-Siedle, A. G.↗
The effect of hydrogen on the tensile properties of palladium
Hydrogen content effect on annealed and work hardened palladium wire tensile properties, determining yield/tensile stress and elongation
Otterson, D. A.↗