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Role of twinning and transformation in hydrogen embrittlement of austenitic stainless steels

Description: Internal hydrogen embrittlement may be viewed as an extreme form of environmental embrittlement that arises following prolonged exposure to a source of hydrogen. Smooth bar tensile specimens of three stainless steels saturated with deuterium (approximately 200 mol D/sub 2//m/sup 3/) were pulled to failure in air at 200 to 400/sup 0/K or in liquid nitrogen at 78/sup 0/K. In Type 304L stainless steel and Tenelon ductility losses are a maximum around 200 to 273/sup 0/K; Type 310 stainless steel is… more
Date: January 1, 1977
Creator: Caskey, G. R., Jr.
Partner: UNT Libraries Government Documents Department
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Fractography of hydrogen-embrittled stainless steel

Description: The temperature dependence of embrittlement of type 304L stainless steel saturated with hydrogen at high pressure was studied. The charging condition was expected to accentuate property changes and changes in fracture mode reported previously without the complicating effects associated with cathodic charging. (GHT)
Date: January 1, 1977
Creator: Caskey, G. R., Jr.
Partner: UNT Libraries Government Documents Department
open access

Characterization studies of BWR-4 neutron noise analysis spectra

Description: Neutron noise analysis measurements were made in three BWR-4 reactors under full-power conditions to determine the noise characterization spectra of the reactors with two different instrument-tube cooling configurations. Both configurations were designed to prevent flow-induced vibration of the instrument tubes and subsequent damage of fuel channel boxes caused by impacts of the tubes with the boxes. Noise spectra from these three reactors were compared with spectra previously obtained prior to… more
Date: January 1, 1977
Creator: Mathis, M. V.; Smith, C. M.; Fry, D. N. & Dailey, M. L.
Partner: UNT Libraries Government Documents Department
open access

Sputtering calculations with the discrete ordinated method

Description: The purpose of this work is to investigate the applicability of the discrete ordinates (S/sub N/) method to light ion sputtering problems. In particular, the neutral particle discrete ordinates computer code, ANISN, was used to calculate sputtering yields. No modifications to this code were necessary to treat charged particle transport. However, a cross section processing code was written for the generation of multigroup cross sections; these cross sections include a modification to the total m… more
Date: November 29, 1977
Creator: Hoffman, T. J.; Dodds Jr., H. L.; Robinson, M.T. & Holmes, D.K.
Partner: UNT Libraries Government Documents Department
open access

Avoidance of Thermal Effluent by Juvenile Chinook Salmon (Oncorhynchus Tshowytscha) and Its Implications in Waste Heat Management

Description: Knowledge of behavioral responses of aquatic organisms to thermal discharges at power plants is essential to evaluate thermal exposure and subsequent effects on survival and ecological success. Instantaneous responses of juvenile salmon that encountered a simulated river-thermal plume interface were assessed in a model raceway with a thermal discharge. Fish movement and response to the discharge were recorded on videotape. Juvenile chinook salmon (Oncorhynchus tshawytscha) tested under three di… more
Date: March 1, 1977
Creator: Gray, R H
Partner: UNT Libraries Government Documents Department
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