Determination of metal crack resistance on half-size Charpy specimens at cryogenic temperatures
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.
Authors
- Maksym Zarazovskii (ORCID: https://orcid.org/0000-0001-7443-8628)
- Volodymyr Iasnii (ORCID: https://orcid.org/0000-0002-5768-5288)
- K. Lukianenko (ORCID: https://orcid.org/0000-0003-1240-7425)
- Sergiy Shukayev (ORCID: https://orcid.org/0000-0002-8195-6041)
Institutions
- National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” (UA)
- Institut für Psychologische Psychotherapie (DE)
- Ternopil Ivan Pului National Technical University (UA)
Publication Details
- Journal
- Mechanics and Advanced Technologies
- Published
- 2024-09-30
- DOI
- https://doi.org/10.20535/2521-1943.2024.8.3(102).306592
- Citations
- 1
- Primary Topic
- Fatigue and fracture mechanics
- Type
- article
- Field-Weighted Citation Impact
- 0.27