LACIE applications evaluation system: A design overview
There are no author-identified significant results in this report.
Dragg, J. L.↗
Engineering topics
Hensley, W. E.
Publications and source records attributed to Hensley, W. E..
Summary of flight performance of the Skylab Earth Resources Experiment Package /EREP/
A group of six remote sensor systems (sensing visible, infrared, and microwave radiation) known as the Earth Resources Experiment Package (EREP) was flown on the NASA Skylab spacecraft to furnish data to numerous investigators in the earth sciences and in technology assessment. Inflight sensor performance in three categories (functional, geometric, and radiometric) was evaluated using: (1) ground measurements of surface, atmospheric, and illumination parameters; (2) ground deployment and operation of microwave receivers and transponders to monitor and excite the active EREP sensors; (3) measurement of surface and atmospheric parameters by instrumented aircraft on underflights of Skylab passes; and (4) analysis of the actual flight data. This resulted in identification and correction of anomalous sensor operation, quantization of geometric distortions or aberrations, improvement or confirmation of calibrations, and determination of sensitivity, accuracy, and stability of the sensors.
Potter, A. E.↗
Effects of hydrogen on ELI titanium alloy Ti-5Al-2.5Sn
Tensile tests on titanium alloy, following abrasion under hydrogen and temperature cycling, reveal lowered tensile strength, increased ductility, and no embrittlement. Fretting the metal on itself in flowing hydrogen or abrading with an iron file in flowing hydrogen produces titanium hydride.
Chandler, W. T.↗
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.↗
Rene 41 heat treatment electron microscopy
Electron microscope helps prevent post-weld strain-age cracking of Rene 41 by identifying in advance microstructures that are detrimental to welding.
Hensley, W. E.↗
Effects of hydrogen on 5Al-2.5Sn ELI titanium
Hydrogen effects on ELI Ti-Al-Sn alloy, conducting tensile, fretting and abrasion tests on stressed and thermal cycled specimens
Chandler, W. T.↗
Effects of hydrogen on 5Al-2.5Sn ELI titanium.
Hydrogen effects on ELI Ti-Al-Sn alloy, conducting tensile, fretting and abrasion tests on stressed and thermal cycled specimens
Chandler, W. T.↗