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in subjects: "Chromium-Nickel Steels"  
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Acoustic Emission Under Biaxial Stresses in Unflawed 21-6-9 and 304 Stainless Steel

Description: Acoustic emission (AE) testing has been carried out with uniaxial and biaxial (2:1 stress ratio) stressing of smooth samples of 21-6-9 and 304 stainless steel (SS). Uniaxial testing was done with simple tensile and compression samples as well as with the special biaxial specimens. Biaxial tensile stressing was accomplished with a specially designed specimen, which had been used previously to characterize AE in 7075 aluminum under biaxial stressing. Results were obtained for air-melt and for vac… more
Date: October 31, 1980
Creator: Hamstad, M. A.; Leon, E. M. & Mukherjee, A. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nuclear fusion systems analysis research. FY 1975 annual report, 1 July 1974--30 June 1975

Description: This report summarizes research conducted during FY 1975 on the parametric systems analysis of fusion central power stations. As described in the report the methodology being pursued provides for a phased analysis starting with simple ''nominal'' parameters and associated computer codes and progressing to more complex functional models and then to physically based mathematical models for the systems of major significance in future power station viability. The nominal parameter analysis for prel… more
Date: December 31, 1975
Creator: Weatherwax, R. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Assessment of electrochemical potentiokinetic reactivation tests to qualify stainless steel for nitric acid service

Description: To minimize the costs and delivery time delays associated with purchasing type 304L stainless steel materials for service in nitric-acid-containing media, an alternative to the current Oak Ridge Y-12 Plant requirement of testing in accordance with American Society for Testing and Materials (ASTM) A 262, Practice C (the boiling nitric acid test), is being sought. A possible candidate is the electrochemical potentiokinetic reactivation (EPR) test being developed for the nuclear industry and under… more
Date: December 31, 1986
Creator: Olsen, A. R.; Dillon, J. J.; Peters, A. H. & Clift, T. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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DT fusion neutron irradiation of LLL 316 stainless steel and SLL silica samples

Description: The DT fusion neutron irradiation of six LLL 316 stainless steel samples and 24 SLL pure silica samples is described. The sample position, beam-on time, and neutron dose record are given. The maximum neutron fluence on any sample was 1.52 x 10/sup 17/ neutrons/cm/sup 2/.
Date: March 31, 1977
Creator: MacLean, S. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Embrittlement of austenitic stainless steel welds

Description: The microstructure of type-308 austenitic stainless steel weld metal containing {gamma} and {delta} and ferrite is shown. Typical composition of the weld metal is Cr-20.2, Ni-9.4, Mn-1.7, Si-0.5, C-0.05, N-0.06 and balance Fe (in wt %). Exposure of austenitic stainless steel welds to elevated temperatures can lead to extensive changes in the microstructural features of the weld metal. On exposure to elevated temperatures over a long period of time, a continuous network of M{sub 23}C{sub 6} carb… more
Date: December 31, 1997
Creator: David, S.A. & Vitek, J.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Modeling the ferrite-to-austenite transformation in the heat-affected zone of stainless steel multi-pass welds

Description: The ferrite/austenite transformation in austenitic stainless steel welds was modeled by considering the transformation as a diffusion-controlled process. A finite-difference method was used to solve the diffusion equations. The transformation behavior was evaluated for both isothermal aging and linear cooling over a range of cooling rates. The analysis provides information on the change in ferrite content as a function of heat treatment as well as the rate of the formation (or dissolution) of f… more
Date: December 31, 1995
Creator: Vitek, J.M.; Vitek, S.A. & David, S.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Helium generation in fusion reactor materials. Technical progress report, April--September 1977

Description: The near-term objectives of this program are to measure the spectrum-integrated helium generation rates and cross sections of a number of pure elements and alloys in several high-intensity neutron sources, and to develop and demonstrate neutron dosimetry procedures using some of these materials. To this end, four neutron irradiation experiments have now been run: one using accelerator-produced d-Be neutrons, two using the accelerator-produced d-T reaction, and one in the neutron field of a mixe… more
Date: January 31, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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