Determination of metal crack resistance on half-size Charpy specimens at cryogenic temperatures

Authors

DOI:

https://doi.org/10.20535/2521-1943.2024.8.3(102).306592

Keywords:

crack resistance, specimen, thermocouple, thermal chamber, extensometer

Abstract

The work consists in the manufacture of experimental equipment for fracture toughness tests at cryogenic temperatures in the range from -196 °Cto -80 °Cand the analysis of the efficiency of determining the reference temperature of a metal by the maker curve for static crack resistance in accordance with ASTM E 1921 and ASTM E399. Liquid nitrogen and its vapours were used to cool the samples to the required temperature. The temperature stability during sample loading was ensured within ±0.5°C around the required temperature. Pre-cracking of the samples was carried out at room temperature in accordance with ASTM E647. Experimental studies on static crack resistance are carried out for three-point bending using half-size Charpy specimens (55×10×5 mm) for the material - 10GN2MFA steel, which is used as the main metal for the main circulation pipelines of VVER-1000. The reference temperature is determined by processing a set of relevant experimental data.

References

  1. Safety Standards of the Nuclear Safety Standards Commission, 1996, “KTA 3201.2. Components of the Reactor Coolant Pres-sure Boundary of Light Water Reactors, Part 2: Design and Analysis,” Salzgitter, Geschaeftsstelle.
  2. ASME, 2002, “Boiler and Pressure Vessel Code, Section III, Rules for Construction of Nuclear Power Plants, Division 1,” New York.
  3. ASSOCIATION FRANCAISE POUR LES REGLES DE CONCEPTION ET DE CONSTRUCTION DES MATERIELS DES CHAUDIERES ELECTRONUCLEAIRES, 1988, “Design and Construction Rules for Mechanical Components of PWR Nuclear Islands, RCC-M,” Paris.
  4. JAPANESE SOCIETY OF MECHANICAL ENGINEERS, 2001, “JSME Codes for Nuclear Power Generation Facilities, S NC1-2001, Rules on Design and Construction for Nuclear Power Plant”, Tokyo.
  5. PNAE G-7-002-86. Normy rascheta na prochnost' oborudovaniya i truboprovodov atomnykh energeticheskikh ustanovok. – M.: Energoatomizdat, 1989.
  6. RD EO 0606-2005. Metodika rascheta na soprotivlenie khrupkomu razrusheniyu korpusov reaktorov AES s VVER (MRKR-SKhR-2004), SPb. Moscow, 2004.
  7. MT-D.0.03.391-09. Metodika otsenki prochnosti i resursa korpusov reaktorov VVER v protsesse ekspluatatsii. – Kiev: Minto-penergo Ukrainy, 2009.
  8. A. Ya. Krasovsky, Yu A. Kashtayalan and V. N., Krasiko, “Fracture toughness temperature dependences of RPV steel at static and dynamic loadings taking into account scale factor,” Preprint. Institute for problem of Strength National Academy of Science of Ukraine, Kyiv.1982,
  9. Otchet po ispytaniyam stali marki 10GN2MFA, ee svarnykh soedinenii i antikorrozionnykh naplavok po opytu izgo-tovleniya i ekspluatatsii korpusnogo oborudovaniya ustanovki V-1000. “Gidropress”, Moskva, 2000.
  10. I. Orynyak, M. Zarazovskii, S. Radchenko and V. Kozlov, “To Determination of the WWER RPV Steels Crack Resistance Characteristics,” ASME 2013 Pressure Vessels and Piping Conference, 2014, doi: https://doi.org/10.1115/PVP2013-97742
  11. International Atomic Energy Agency. 2009. Integrity of Reactor Pressure Vessels in Nuclear Power Plants: Assessment of Irradiation Embrittlement Effects in Reactor Pressure Vessel Steels. IAEA Nuclear Energy Series No. NP-T-3.11. Vienna: IAEA.
  12. ASTM E1921-17a, “Standard Test Method for Determination of Reference Temperature, T0, for Ferritic Steels in the Transition Range,” West Conshohocken, PA, 2017.
  13. K. Wallin, “Fracture toughness transition curve shape for ferritic structural steels,” in Proc. Joint FEFG/ICF International Con-ference on Fracture of Engineering Materials and Structures, S.H. Teoh and K.H. Lee Eds, Elsevier, London, pp. 83–88, 1991a, doi: https://doi.org/10.1007/978-94-011-3650-1_10
  14. K. Wallin, T. Planman, M. Valo and R. Rintamaa, “Applicability of Miniature Size Bend Specimens to Determine the Master Curve Reference Temperature To,” Engineering Fracture Mechanics, Vol. 68, pp. 1265–1296, 2001, doi: https://doi.org/10.1016/S0013-7944(01)00020-0
  15. K. Wallin, Master Curve Analysis of Ductile to Brittle Transition Region Fracture Toughness Round Robin Data (The Euro Fracture Toughness Curve). VTT Technical Research Centre of Finland, 1989.
  16. International Atomic Energy Agency, “Master curve approach to monitor fracture toughness of reactor pressure vessels in nucle-ar power plants,” IAEA-TECDOC-1631, Vienna, 2009.
  17. Unified Procedure for Lifetime Assessment of Components and Piping in WWER NPPs, “VERLIFE” Version 2008.
  18. ASTM E647-22, “Standard Test Method for Measurement of Fatigue Crack Growth Rates,” West Conshohocken, 2022.
  19. ASTM E399-22, “Test Method for Linear-Elastic Plane-Strain Fracture Toughness of Metallic Materials” West Conshohocken, 2022.

Downloads

Published

2024-09-30

How to Cite

[1]
K. Lukianenko, M. Zarazovskii, S. Shukayev, and V. Iasnii, “Determination of metal crack resistance on half-size Charpy specimens at cryogenic temperatures”, Mech. Adv. Technol., vol. 8, no. 3(102), pp. 246–255, Sep. 2024.

Issue

Vol. 8 No. 3(102) (2024)

Section

Mechanics

License

Copyright (c) 2024 Костянтин Лук'яненко, Максим Заразовський, Сергій Шукаєв, Володимир Ясній

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The ownership of copyright remains with the Authors.
 
Authors may use their own material in other publications provided that the Journal is acknowledged as the original place of publication and National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” as the Publisher.

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under CC BY 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work