Fracture toughness measurements with subsize disk compact specimens
Special fixtures and test methods have been developed for testing small disk compact specimens (1.25 mm diam by 4.6 mm thick). Specimens of European type 316L austenitic stainless steel were irradiated to damage levels of about 3 dpa at nominal irradiation temperatures of either 90 or 250 C and tested over a temperature range from 20 to 250 C. Results show that irradiation to this dose level at these temperatures reduces the fracture toughness but the toughness remains quite high. The toughness decreases as the test temperature increases. Irradiation at 250 C is more damaging than at 90 C, causing larger decreases in the fracture toughness. The testing shows that it is possible to generate useful fracture toughness data with a small disk compact specimens.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 104508
- Report Number(s):
- CONF-9409286-2; ON: DE95017399; TRN: 95:020501
- Resource Relation:
- Conference: International symposium on miniaturized specimens for testing of irradiated materials, Julich (Germany), 22-23 Sep 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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