Effects Of Neutron Irradiation On The Elevated Temperature Mechanical Properties Of Nickel Base And Refractory Metal Alloys
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Author | : T. T. Claudson |
Publisher | : |
Total Pages | : 28 |
Release | : 1967 |
Genre | : Ductility |
ISBN | : |
Nuclear research and power reactors are now being designed which must operate at temperatures and coolant environments dictating the use of nickel-base and refractory metal alloys for structural components, fuel cladding, and power equipment. Investigation of the effects of irradiation and environment upon the mechanical properties of several nickel-base and refractory metal alloys has been initiated at the Pacific Northwest Laboratory. Tension specimens of Inconel 600, Inconel 625, Inconel 702, Inconel 718, Incoloy 800, Hastelloy C, Hastelloy N, Hastelloy X-280, and Hastelloy R-235 have been irradiated to exposures exceeding 1 x 1021 nvt (E > 1 Mev) in 50 C water, 280 C water, and 740 C gaseous environments. These specimens have been tested in the pre- and postirradiated conditions at room temperature, 300 C, and 650 C. Several metallurgical conditions of the materials have also been examined and the changes in mechanical properties due to the irradiation have been noted. The Cb-1 Zr, Cb-752, TZM Mo, and W-25 Re refractory metals have been irradiated at ambient temperatures, and the effects of irradiation upon the mechanical properties have been evaluated at room temperature and 1090 C. The data obtained for both the nickel-base and refractory metal alloys tested indicate that there is a marked effect upon the mechanical properties due to the thermal environment. In addition to this effect, effects due to the irradiation were also found. Comparison of the elevated temperature data to the room temperature data shows a marked decrease in both strength and ductility. Metallographic examination of these materials is continuing in an attempt to find the cause of these damages.
Author | : Books on Demand |
Publisher | : ASTM International |
Total Pages | : 723 |
Release | : 1967 |
Genre | : Metals |
ISBN | : |
Author | : M. Kangilaski |
Publisher | : |
Total Pages | : 264 |
Release | : 1967 |
Genre | : Metals |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 0 |
Release | : 1966 |
Genre | : |
ISBN | : |
Author | : Frederic R. Shober |
Publisher | : |
Total Pages | : 120 |
Release | : 1961 |
Genre | : Metals |
ISBN | : |
The effect of fast-neutron (>1 Mev) irradiation on the mechanical properties of structural metals and alloys was studied. Although the yield strengths and ultimate tensile strengths are increased su stantially for most materials, the ductility suffers severe decreases. This report presents these changes in properties of several structural metals for a number of neutron exposures within the 1.0 x 10 to the 18th power to 5.0 x 10 to the 21st power n/sq cm range. Data summarizing these effects on several classes of materials such as carbon steels, low-alloy steels, stainless steels, Zr-base alloys, ni-base alloys, Al-base alloys, and Ta are given. Additional data which show the influence f irradiation temperatures and of post-irradiation annealing on the radiation-induced property changes are also given and discussed. Increases as great as 175% in yield strength, 100% in ultimate strength, and decreases of 80% in total elongation are reported for fast-neutron exposures as great as 5 10 to the 21st power n/sq cm. (Author).
Author | : T. T. Claudson |
Publisher | : |
Total Pages | : 36 |
Release | : 1965 |
Genre | : Metals |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 60 |
Release | : 1969 |
Genre | : Research |
ISBN | : |
This report is one of an annual series and announces formal research and development reports and technical articles published during 1968 by Battelle-Northwest. The reports were issued in accordance with the AEC Standard Distribution Lists for Scientific and Technical Reports (AEC Documents TID-4500 and M-3679). The unclassified reports are generally available from the Clearinghouse for Federal Scientific and Technical Information, U.S. Department of Commerce, Springfield, Virginia 22151. Classified reports are available, with proper literature access, from the AEC's Division of Technical Information Extension (DTIE), P.O. Box 62, Oak Ridge Tennessee 37830. The reports and articles are grouped by broad subject categories and arranged alphabetically by author within each category. An author index and report number index are also included. Other reports in this series are BNWL-218, BNWL-387, and BNWL-700.
Author | : |
Publisher | : |
Total Pages | : 680 |
Release | : 1976 |
Genre | : Nuclear energy |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 1038 |
Release | : 1972 |
Genre | : Aeronautics |
ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author | : |
Publisher | : |
Total Pages | : 320 |
Release | : 1966 |
Genre | : Nuclear reactors |
ISBN | : |