Postirradiation Creep and Stress Rupture of Hastelloy N
- 1 March 1967
- journal article
- research article
- Published by Taylor & Francis in Nuclear Applications
- Vol. 3 (3) , 167-177
- https://doi.org/10.13182/NT67-A27871
Abstract
The creep ductilities of irradiated Hastelloy N at 650°C have been determined at several neutron exposures. Elevated-temperature irradiation embrittlement greatly reduces the stress-rupture strength as measured in postirradiation uniaxial stress tests. The reduction in ductility to values as low as 0.4% is due to an irradiation effect related to the process of intergranular fracture. Intergranular cracks, once formed, propagate with greater ease in the irradiated alloy as compared with a sample exposed to a lesser radiation exposure.Keywords
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