Effect of specimen size on the fracture toughness of V-4Cr-4Ti
- Pacific Northwest National Laboratory, Richland, WA (United States)
J-R curves were generated using the single specimen unload-compliance technique on four specimens of V-4Cr-4Ti to determine the effect of specimen dimensions on the fracture behavior. Ductile crack initiation and growth was observed in the 6.35 mm thick specimens but not in the 12.70 mm thick specimens. The J-R curves determined from these tests were not valid per ASTM validity criteria so quantitative measures of the resistance to ductile crack initiation and growth were not obtained. These data suggests that standard fracture toughness tests were performed with small-scale DCT specimens may also not be valid.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- OSTI ID:
- 270421
- Report Number(s):
- DOE/ER--0313/19; ORNL/M--5023; ON: DE96010874
- Country of Publication:
- United States
- Language:
- English
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