Comparison of irradiated 15Kh2MFA material mechanical properties using conventional testing methods and innovative approach of small punch testing (SPT) and automated ball indentation (ABIT)

4th International Conference Recent Trends in Structural Materials

Kopriva, R.^1 ; Petelova, P.^1 ; Eliasova, I.^1 ; Kytka, M.^1 ; Culek, M.^1

UJV Rez, A. S. Integrity and Technical Engineering Division, Hlavni 130, Rez, Husinec

250 68, Czech Republic^1

关键词: Ball indentation;    Ball indentation tests;    Conventional testing;    Innovative approaches;    Irradiated materials;    Reactor Pressure Vessel;    Small punch testing;    Surveillance program;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/179/1/012040/pdf
DOI  :  10.1088/1757-899X/179/1/012040

来源: IOP

【 摘 要 】

Article describes two innovative testing methods - Small Punch Testing (SPT) and Automated Ball Indentation Test (ABIT) - which are based on the determination and evaluation of material properties from miniaturized testing specimens. These methods are very promising due to minimum material needed for testing and also in case of testing highly irradiated materials of components that are not included in standard surveillance programs. The test results were obtained for reactor pressure vessel (RPV) base material 15Ch2MFA in both states - initial unirradiated and irradiated. Subsequently results were compared with standard tensile tests to prove applicability of these testing methods for the evaluation of degradation of irradiated structural materials of nuclear power plants.