منابع مشابه
Positron Annihilation Measurements on Nuclear Reactor Pressure Vessel Steels
Positron Annihilation Spectroscopy is a valuable microscopic method to study radiation damage in nuclear reactor pressure vessel steels. At SCKoCEN, a new positron lifetime setup, suited to measure positron lifetimes in irradiated steel, is being constructed. The particularity of this setup is that the prompt count rate originating from the induced 60Co-activity in the steel is highly reduced. ...
متن کاملUnderstanding Pressure Vessel Steels: An Atom Probe Perspective
Published Elsevier Science Inc. 1044-5803/00/$–see front matter 655 Avenue of the Americas, New York, NY 10010 PII S1044-5803(99)00056-X 235 Understanding Pressure Vessel Steels: An Atom Probe Perspective M. K. Miller,* P. Pareige,*† and M. G. Burke‡ *Microscopy and Microanalytical Sciences Group, Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6376; †Groupe de ...
متن کاملGrain Boundary Segregation in Commercial Nuclear Reactor Pressure Vessel Steels
Grain boundary (GB) segregation of impurity/solute atoms in surveillance test specimens of a commercial western-type pressurized water reactor pressure vessel (RPV) steel has been observed by using state-of-the-art 3D atom probe (3DAP) field ion microscope (laser-assisted local electrode-type atom probe: laser-LEAP). The GB segregation is considered to be an origin of the embrittlement of the R...
متن کاملExperimental and Computational Study on Hydrodynamic of a Downscaled Mini Vessel USP Dissolution Test Apparatus II
Although not listed on the United States Pharmacopeia (USP), like standard USP 2, small volume USP 2 dissolution apparatus has gained a great deal of attention, especially for cases where small amount of drug product is available for testing in research and design step or evaluations are to be made on a tablet containing trace amounts of the active pharmaceutical ingredient. In this work, first...
متن کاملOrigin of Embrittlement of Commercial Nuclear Reactor Pressure Vessel Steels: Cu-rich Precipitates and Defects
The irradiation-induced embrittlement of the nuclear reactor pressure vessel (RPV) steels is currently a vital issue for ensuring safe operation of nuclear power plants in the world since the reactors of the first generation are going to exceed their initially designed operation lifetimes. Thus, it is of great importance to reveal the nanostructural change, attributed to the origins of the embr...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1952
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1915.38.4_220