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Positron Annihilation Study Of Radiation Damage In Neutron Irradiated Reactor Pressure Vessel Steels
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Book Synopsis Positron annihilation study of radiation damage in neutron irradiated reactor pressure vessel steels by : Gerhard Brauer
Download or read book Positron annihilation study of radiation damage in neutron irradiated reactor pressure vessel steels written by Gerhard Brauer and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation and Mössbauer Studies of Neutron Irradiated Reactor Pressure Vessel Steels by : Gerhard Brauer
Download or read book Positron Annihilation and Mössbauer Studies of Neutron Irradiated Reactor Pressure Vessel Steels written by Gerhard Brauer and published by . This book was released on 1990 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study by Positron Annihilation of Neutron Damage in a Pressurized Water Reactor (PWR) Pressure Vessel Steel After a 13-Year Irradiation in the CHOOZ A Reactor Surveillance Program by : J. Bourgoin
Download or read book Study by Positron Annihilation of Neutron Damage in a Pressurized Water Reactor (PWR) Pressure Vessel Steel After a 13-Year Irradiation in the CHOOZ A Reactor Surveillance Program written by J. Bourgoin and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microstructural evolution of a pressure vessel steel (C shell base metal) was studied after a long-term irradiation (13 years) in the surveillance program of a CHOOZ A reactor. The positron lifetime technique was used to determine if the neutron-induced damage is partially composed of voids. Analysis of spectra measured on irradiated samples (fluence = 14 x 1019 n•cm-2, E > 1 MeV) reveals that the neutron irradiation has not induced the formation of voids containing more than about 50 vacancies (that is, voids with a radius higher than about 0.5 nm). On the other hand, some results suggest the presence after irradiation of a low density of very small voids (less than 10 vacancies) probably located in precipitates.
Book Synopsis Investigation of Neutron Irradiated Reactor Pressure Vessel Steel by Positron Annihilation and Electron Microscopy by : RV. Nandedkar
Download or read book Investigation of Neutron Irradiated Reactor Pressure Vessel Steel by Positron Annihilation and Electron Microscopy written by RV. Nandedkar and published by . This book was released on 1987 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Positron lifetime, annihilation line shape, and electron microscopic measurements have been carried out on neutron irradiated pressure vessel steel (HSST Plate 03) meeting ASTM A533-B (Unified Numbering System [UNS] K12539). The positron annihilation parameters for specimens irradiated at 423 K to a dose of 1.5 x 1018 n/cm2 are found to decrease sharply during the post-irradiation annealing interval, 473 to 623 K. This correlates well with the stage seen in the recovery of Vickers hardness. On the basis of known evidence for carbon migration in ?-iron and the interpretation of present results, enhancement and recovery of radiation hardening have been qualitatively understood in terms of formation and dissolution of carbon decorated vacancy complexes.
Book Synopsis Annealing studies of neutron irradiated reactor pressure vessel steels by positron annihilation by : Gerhard Brauer
Download or read book Annealing studies of neutron irradiated reactor pressure vessel steels by positron annihilation written by Gerhard Brauer and published by . This book was released on 1988 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation Studies on Neutron Irradiated Pressure Vessel Steels by :
Download or read book Positron Annihilation Studies on Neutron Irradiated Pressure Vessel Steels written by and published by . This book was released on 1987 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron annihilation studies on neutron irradiated pressure vessel steels by :
Download or read book Positron annihilation studies on neutron irradiated pressure vessel steels written by and published by . This book was released on 1987 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation Spectroscopy of Nanostructural Features in Model Reactor Pressure Vessel Steels by : P. Asoka-Kumar
Download or read book Positron Annihilation Spectroscopy of Nanostructural Features in Model Reactor Pressure Vessel Steels written by P. Asoka-Kumar and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Irradiation embrittlement in nuclear reactor pressure vessel steels results from the formation of a high number density of nanometer sized copper rich precipitates and sub-nanometer defect-solute clusters. We present positron annihilation spectroscopy (PAS) results to characterize the compositions and magnetic character of these defects in model A533B reactor pressure vessel steels. The results confirm the presence of copper-rich precipitates after irradiation. The measured orbital electron momentum spectra indicate the precipitates are alloyed with Mn and Ni. The copper precipitates larger than R {approx} 1.2 nm (from SANS measurements) are non-magnetic, which limits the possible Fe content of the precipitates to at most a few %. Notably, large vacancy clusters observed in neutron irradiated Fe-Cu alloys were not observed in the steels after irradiation.
Book Synopsis Positron Annihilation and Mössbeuer Studies of Neutron Irradiated Reactor Pressure Vessel Steel by : Gerhard Brauer
Download or read book Positron Annihilation and Mössbeuer Studies of Neutron Irradiated Reactor Pressure Vessel Steel written by Gerhard Brauer and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation Studies on Neutron Irradiated Pressure Vessel Steels by :
Download or read book Positron Annihilation Studies on Neutron Irradiated Pressure Vessel Steels written by and published by . This book was released on 1987 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radiation Embrittlement of Nuclear Reactor Pressure Vessel Steels by : Lendell E. Steele
Download or read book Radiation Embrittlement of Nuclear Reactor Pressure Vessel Steels written by Lendell E. Steele and published by ASTM International. This book was released on 1986 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation Studies of Neutron Irradiated Reactor Pressure Vessel Steels by : Gerhard Brauer
Download or read book Positron Annihilation Studies of Neutron Irradiated Reactor Pressure Vessel Steels written by Gerhard Brauer and published by . This book was released on 1988 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis POSITRON ANNIHILATION STUDIES OF NEUTRON IRRADIATED REACTOR PRESSURE VESSEL STEELS. LECTURE GIVEN AT THE XX. POLISH SEMINAR ON POSITRON ANNIHILATION HELDMAY 16-21, 1988 AT PIECHOWICE, POLAND. by : G. Brauer
Download or read book POSITRON ANNIHILATION STUDIES OF NEUTRON IRRADIATED REACTOR PRESSURE VESSEL STEELS. LECTURE GIVEN AT THE XX. POLISH SEMINAR ON POSITRON ANNIHILATION HELDMAY 16-21, 1988 AT PIECHOWICE, POLAND. written by G. Brauer and published by . This book was released on 1988 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Irradiation Embrittlement of Reactor Pressure Vessel Steels by : Lendell E. Steele
Download or read book Neutron Irradiation Embrittlement of Reactor Pressure Vessel Steels written by Lendell E. Steele and published by . This book was released on 1975 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Irradiated Pressure Vessel Steel by Mechanical Tests and Positron Annihilation Lineshape Analysis by : N. Maeda
Download or read book Evaluation of Irradiated Pressure Vessel Steel by Mechanical Tests and Positron Annihilation Lineshape Analysis written by N. Maeda and published by . This book was released on 1999 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical test and positron annihilation lineshape analysis have been performed on neutron irradiated pressure vessel steels, A533B1 steel and the weld metal. Marked changes in the mechanical properties were observed for both metals after the neutron exposure. S-parameters, the positron annihilation parameters, also increased after the neutron irradiation but only the small change was observed in the different levels of neutron fluence. The change in S-parameter and the mechanical properties were well correlated. It is concluded that changes in embrittlement induced by radiation can be monitored by positron annihilation lineshape analysis but detectability is dependent on the materials.
Book Synopsis Radiation Embrittlement of Nuclear Reactor Pressure Vessel Steels by : Lendell E. Steele
Download or read book Radiation Embrittlement of Nuclear Reactor Pressure Vessel Steels written by Lendell E. Steele and published by ASTM International. This book was released on 1989 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microstructure of the Neutron Irradiated VVER-type Reactor Pressure Vessel Steels by : I. Procházka
Download or read book Microstructure of the Neutron Irradiated VVER-type Reactor Pressure Vessel Steels written by I. Procházka and published by . This book was released on 2000 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional transmission electron microscopy has been used to investigate the radiation-induced changes in the microstructure of VVER-type RPV steels. Specimens irradiated at ? 270 °C temperature in both the power light-water reactor (surveillance specimens) and the research reactor have been studied. In addition, the microstructure of the thermally aged specimens was analyzed too. Microstructural analysis has been supplemented by some preliminary results of the Doppler broadening and lifetime positron annihilation measurements.
