Accession Number:

AD0259361

Title:

EFFECT OF IRRADIATION TEMPERATURE ON NEUTRON-INDUCED CHANGES IN NOTCH DUCTILITY OF PRESSURE-VESSEL STEELS

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1961-06-28

Pagination or Media Count:

15.0

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.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Nuclear Power Plants and Fission Reactor Engineering
  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE