Ring ductility of irradiated Inconel 706 and Nimonic PE16
The tensile ductility of fast neutron-irradiated, precipitation-hardened alloys Inconel 706 and Nimonic PE16 has been observed to be very low for certain test conditions. Explanations for the low ductility behavior have been sought by examination of broken tensile specimens with microscopy and other similar techniques. A ring compression test provides a method of evaluating the ductility of irradiated cladding specimens. Unlike the conventional uniaxial tensile testing in which the tensile specimen is deformed uniformly, the ring specimen is subjected to localized bending where the crack is initiated. The ductility can be estimated through an analysis of the bending of a ring in terms of strain hardening. Ring sections from irradiated, solution-treated Inconel 706 and Nimonic PE16 were compressed in the diametral direction to provide load-deflection records over a wide range of irradiation and test temperatures. Results showed that ductility in both alloys decreased with increasing test temperatures. The poorest ductility was exhibited at different irradiation temperatures in the two alloys - near 550/sup 0/C for PE16 and 460 to 520/sup 0/C for Inconel 706. The ring ductility data indicate that the grain boundary strength is a major factor in controlling the ductility of the PE16 alloy.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 7140386
- Report Number(s):
- HEDL-SA-3005-FP; CONF-840604-5; ON: DE84010397
- Country of Publication:
- United States
- Language:
- English
Similar Records
Selected mechanical properties of Inconel 718 and 706 weldments
Alloy Development Program. Quarterly technical progress letter, October, November, December 1976
Related Subjects
360106* -- Metals & Alloys-- Radiation Effects
ALLOYS
BARYONS
BORON ADDITIONS
BORON ALLOYS
BREEDER REACTORS
CARBON ADDITIONS
CHROMIUM ALLOYS
DUCTILITY
EBR-2 REACTOR
ELEMENTARY PARTICLES
EMBRITTLEMENT
EPITHERMAL REACTORS
EXPERIMENTAL REACTORS
FAST NEUTRONS
FAST REACTORS
FBR TYPE REACTORS
FERMIONS
HADRONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL 706
INCONEL ALLOYS
IRON ALLOYS
IRRADIATION
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NEUTRONS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIMONIC
NIMONIC PE16
NIOBIUM ALLOYS
NUCLEONS
PHYSICAL RADIATION EFFECTS
POWER REACTORS
RADIATION EFFECTS
REACTORS
RESEARCH AND TEST REACTORS
SODIUM COOLED REACTORS
TENSILE PROPERTIES
TITANIUM ALLOYS
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS