EFFECT OF IRRADIATION TEMPERATURE ON NEUTRON-INDUCED CHANGES IN NOTCH DUCTILITY OF PRESSURE-VESSEL STEELS
Abstract
IN ORDER TO STUDY THE EFFECTS OF ELEVATED IRRADIATION TEMPERATURES UPON THE SHIFT (increase) in the ductile-to-brittle transition temperature of two pressure-vessel steels, an experimental assembly containing four groups of specimens was irradiated. Four different irradiation temperatures, 260, 400, 450, and 550 F, were maintained for a one-month irradiation period. Post-irradiation evaluation of specimens indicated no significant temperature effect for the materials irradiated at less than 450 F. There was a significant effect as a result of irradiation at 550 F, the shift being roughly 100 F less. The transition-temperature shifts for materials irradiated at less than 450 F were in good agreement with data from 19 earlier experiments in which the specimen temperatures during irradiation were less than 200 F.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 28, 1961
- Accession Number
- AD0259361
Entities
People
- J. Russell Hawthorne
- Lendell E. Steele
Organizations
- United States Naval Research Laboratory