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Monday, May 18, 2020 | History

2 edition of Irradiation effects at 160-240⁰ C in some Swedish pressure vessel steels found in the catalog.

Irradiation effects at 160-240⁰ C in some Swedish pressure vessel steels

Mikael Grounes

Irradiation effects at 160-240⁰ C in some Swedish pressure vessel steels

by Mikael Grounes

  • 15 Want to read
  • 40 Currently reading

Published by Aktiebolaget Atomenergi in Stockholm .
Written in English

    Subjects:
  • Steel -- Effect of radiation on.,
  • Nuclear pressure vessels.

  • Edition Notes

    Bibliography: p. 13-14.

    Statement[by] M. Grounes, H. P. Myers and N. -E. Hannerz.
    SeriesAtomenergi, Aktiebolaget. AE, -298, AE (Series) (Stockholm, Sweden) ;, 298.
    ContributionsMyers, H. P., 1925- joint author., Hannerz, Nils-Erik, 1935- joint author.
    Classifications
    LC ClassificationsTK9008 .A77 no. 298
    The Physical Object
    Pagination14 p.
    Number of Pages14
    ID Numbers
    Open LibraryOL5640502M
    LC Control Number68070851

    : Effects of Radiation on Materials (Astm Special Technical Publication) (): Gelles, David S., Nanstad, Randy K., Kumar, Arvind S., Little. 95 83 J.D. Baird, Strain Aging of Steel A Critical Review, Iron Steel, May 1 , p 18 6- ; June 1 , p 32 6- 3 34; July 1 , p 36 74; Aug 1 , p 40 05; Sept 1 , p 45 Trans., Vol 12A, July , p

    You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new . Carbide coarsening has been investigated in a 12 percent CrMoV steel. Studies in the gauge length (creep exposed) and in the head (stress free ageing) for both interrupted and ruptured creep specimens tested at an initial stress of 80 MPa at various temperatures and at °C at different initial stresses have been : Rui Wu, Rolf Sandström.

    The object of the investigation was surveillance specimen (SS) evaluations of RV materials. It has been found that at an irradiation temperature of °C neither the base metal (steel 15 Kh2MFA) nor weld metal exhibits saturation of radiation embrittlement in irradiation of specimens up to neutron fluences of 7 × 10 20 n/cm 2 (E > MeV Cited by: The results suggest that the apparently accelerated embrittlement reported for the pressure vessel of the High Flux Isotope Reactor is not the result of a low displacement rate. Keywords: pressure vessel steels, hardening, embrittlement, defect clusters, displacement rate, irradiation temperature, theoretical modelsCited by: 8.


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Irradiation effects at 160-240⁰ C in some Swedish pressure vessel steels by Mikael Grounes Download PDF EPUB FB2

One of the options to mitigate the effects of irradiation on reactor pressure vessels (RPVs) is to thermally anneal them to restore the toughness properties that have been degraded by neutron irradiation. Even though a postirradiation anneal may be deemed successful, a critical aspect of continued RPV operation is the rate of embrittlement upon by: 8.

GrounesReview of Swedish work on irradiation effects in pressure vessel steels and on significance of data obtained Effects of Radiation on Structural Metals, ASTM STPAmerican Society for Testing and Materials, Philadelphia (), pp.

Cited by: Irradiation embrittlement is an important factor limiting the lifetime of nuclear power plants and has been therefore intensively studied during last decades. As for the microstructure of neutron-irradiated reactor pressure vessel (RPV) steels, the embrittlement is characterised by creation of small (Cited by: 1.

PDF | The Reactor Pressure Vessel (RPV) is one of the most important components for the safety of nuclear power plants. The safety goal is to avoid |.

Effects of neutron flux (or dose rate) on the characteristics of irradiation-induced nanofeatures in neutron-irradiated pressure vessel steels were occasionally reported. Irradiation effect on the three commercial steels of L family to ∼12 dpa at the temperature ∼– °C on the tensile properties, microstructure, swelling and susceptibility to SCC are.

Abstract. Radiation embrittlement of VVÉR vessel materials has been studied much less than for VVÉR reactors. In the present paper the results of an investigation of the first batches of control samples of VVÉR vessel materials are by: 8.

Similar steels are used in the major nuclear countries for reactor pressure vessels with a tempered bainite microstructure. In VVER Russian reactors, low alloy steels with a higher amount of chromium (2–3%) and molybdenum (–1%) are used for pressure vessels, as is very often the case in other industries for large vessels (better welding).Cited by: 5.

Fig. 1 shows the TEM images for the non-irradiated sample (a) and for the samples with LF = 93 (b) and LF = (c). The presence of precipitates is evident in the irradiated samples (Fig.

1(b) and (c)), which show a larger precipitate size for the LF = 93 difference is a clear sign of a nucleation and growth process during irradiation, due to the longer irradiation time Cited by: 9. Study and Evaluation of Aluminum Capsules to Irradiation of Gaseous Samples in Nuclear Reactor Fig.

1 (a) Aluminum capsule to irradiate gaseous samples and (b) standard aluminum rabbit used to irradiate solid samples in nuclear reactor IEA-R1.

Fig. 2 Hydraulic presshead with semi-circular slotted die modified. spectrometer leakage test [5].Author: Osvaldo, Luiz, Costa, Anselmo, Feher, Joao, Moura, Carla, Souza, Rodrigo, Tiezzi, Daiane, Eduardo, H.

An existing database of small angle neutron scattering (SANS) spectra on a series of model AB alloys containing various copper, phosphorus or nickel additions, before and after °C neutron irradiation to ×10 23 n.m-2 (E>1 MeV), is re-analysed using a Maximum Entropy computing procedure.

Volume fraction — particle size and number density data are produced Cited by: 2. Irradiation-induced solute-rich precipitates are harmful microstructural nanofeatures responsible for the irradiation embrittlement and hardening of reactor pressure vessel (RPV) steels.

Neutron irradiation embrittlement in ferritic reactor pressure vessels (RPV) is evident in two effects: firstly, it narrows the ‘pressure-temperature’ operation window for normal operating conditions, and secondly, it limits RPV lifetime as the transition temperature of RPV materials cannot be higher than that determined from pressurized thermal shock (PTS) calculations.

Prediction of radiation induced hardening of reactor pressure vessel steels using artificial neural networks Article in Journal of Nuclear Materials (1) January with 38 Reads. Irradiation creep deformation of stainless steels has been studied in a great concern of reactor design for more than three decades.

It was consistently shown that the irradiation creep rate is the sum of two terms, one independent of swelling and one strongly coupled with the swelling rate. The major components of the instantaneousCited by: 5.

Use of reconstitution technique for these specimens after their irradiation allows irradiation of a whole set of specimens in one capsule, only.

For this case, specimens of 10x10x14 mm are used, in three rows in one capsule = 12 specimens together in one capsule. Neutron irradiation embrittlement could limit the service life of some of the reactor-pressure vessels in existing commercial nuclear-power plants. Improved understanding the of the underlying causes of embrittlement has provided regulators and power-plant operators better estimates of vessel-operating margins.

This article presents an overview of embrittlement, Cited by:   The mechanisms of radiation brittleness and the microstructure of deformed stainless steels, such as EP ferritic-martensitic steel EI and ferritic steel, irradiated to doses of 10– dpa are investigated by the method of imitation of the effect of reactor irradiation with the help of accelerators of charged particles.

The specific features of the Author: O. Parkhomenko, V. Voevodin, V. Bryk, Yu. Kupriyanova, I. Laptev, L. Ozhygov, V. Influence of Extra Coarse Grains on the Creep Properties of 9 Percent CrMoV (P91) Steel Weldment Rui Wu, Rui Wu. Swedish Institute for Metals Research, Drottning Kristinas va¨g 48, S 28 Stockholm, Sweden and Roberts, B.

W.,“Welding, Fabrication, and Service Experience with Modified 9Cr-1Mo Steel,” Pressure Vessels and Piping Cited by: International Review of Nuclear Reactor Review of Nuclear Reactor Pressure Vessel Surveillance Programs, contains peer- reviewed papers that were presented at a workshop held Jin Chicago, Simultaneously, workshops on Irradiation Effects in Reactor Pressure Vessel Steels (or.

In-vessel materials: short overview and loading conditions-Ferritic-martensitic ODS steels (9Cr-YO) (EUROFER, F82H) °C-RAFM ODS Steels °C Functional Materials-Neutron Multipliers (Be), Li ceramics-Diagnostics, Windows and Insulators ODS steels may be extremely irradiation tolerant.

20 A. Möslang MIIFED, December.Lenntech (European Head Office) Distributieweg 3 EG Delfgauw The Netherlands Phone: +31 fax: +31 e-mail: [email protected] Lenntech USA LLC (Americas) Lincoln Road, Suite C Miami Beach, FL Phone: +1 (speaks English & Spanish) e-mail: [email protected] Lenntech DMCC (Middle East).Pressure Vessels: Design and Practice (Mechanical Engineering) Somnath Chattopadhyay With very few books adequately addressing ASME Boiler & Pressure Vessel Code, and other international code issues, Pressure Vessels: Design and Practice provides a comprehensive, in-depth guide on everything engineers need to know.