54 research outputs found
Phase Stability Effects on Hydrogen Embrittlement Resistance in Martensite–Reverted Austenite Steels
Get PDFEarlier studies have shown that interlath austenite in martensitic steels can enhance hydrogen embrittlement (HE) resistance. However, the improvements were limited due to microcrack nucleation and growth. A novel microstructural design approach is investigated, based on enhancing austenite stability to reduce crack nucleation and growth. Our findings from mechanical tests, X-ray diffraction, and scanning electron microscopy reveal that this strategy is successful. However, the improvements are limited due to intrinsic microstructural heterogeneity effects
The A.I.E.E. Conference on Electron Tubes for Instrumentation and Industrial Use, held at Philadelphia, March 29-30, 1948
No full textPeer reviewed: YesNRC publication: Ye
Electron Tube Conference: held at Cornell University, June 28-29, 1948
No full textPeer reviewed: YesNRC publication: Ye
A stabilized power supply for voltages below twenty volts
No full textA stabilized power supply adjustible over the range zero to twenty volts is described. The device has an internal impedance of 0.01 ohms, and can stabilize a current of 500 milliamperes over its complete voltage range. Higher currents may readily be obtained by using larger recifiers.NRC publication: Ye
Electron tube development and research in United Kingdom and Netherlands: September, 1952
No full textNRC publication: Ye
A stabilized D-C power supply variable from 0-25 volts
No full textA modified design of the low-voltage power supply, previously reported in "A stabilized power supply for voltages below twenty volts" (ERA-187), is described. An internal impedance of 0.005 ohms has been obtained, with good long-term stability. The output voltage is adjustable from 0.75 to 23 volts. The maximum current obtainable with good regulation varies from 1.5 amperes at the lowest voltage to 0.2 amperes at the highest.NRC publication: Ye
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