Exploratory Studies of the Effects of Irradiation Temperature on Mechanical Properties of Structural Steels amd Welds

JR Hawthorne

doi:10.1520/STP23944S

SYMPOSIA PAPER Published: 01 January 1994

STP23944S

Exploratory Studies of the Effects of Irradiation Temperature on Mechanical Properties of Structural Steels amd Welds

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The influence of irradiation temperature on the extent of change in Charpy-V (C_v) notch ductility and tension test properties of low alloy structural steels and welds was explored for reactor vessel applications. Specimens were irradiated at 288°C and 316°C in temperature-controlled assemblies in the Ford Nuclear Reactor (FNR) at the University of Michigan. Irradiation at 316°C to 7.9 × 10¹⁸ n/cm², E > 1 MeV, produced 41-J temperature elevations that were on average 51% of those produced by 260°C irradiation. Thermal aging at 316°C for 5000 h had little effect on C_v and tension test properties. NRC Regulatory Guide 1.99 Rev. 2 projections for irradiation-induced embrittlement at 288°C are compared to the experiment measurements.

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Hawthorne, JR

, Lanham, MD

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Developed by Committee: E10

Pages: 306–331

DOI: 10.1520/STP23944S

ISBN-EB: 978-0-8031-5262-5

ISBN-13: 978-0-8031-1488-3

Exploratory Studies of the Effects of Irradiation Temperature on Mechanical Properties of Structural Steels amd Welds

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