SYMPOSIA PAPER Published: 01 January 1999
STP13876S

Effects of Damage Rate on Irradiation Hardening and Post-irradiation Annealing Characteristics of Carbon Steel

Source

Irradiation embrittlement in a low dose region was studied for an aluminum-killed carbon steel from the point of dose rate effects. The dose rate as low as ∼5x108 n/cm2/s (E> 1MeV) caused a Charpy transition temperature shift of more than 30°C after irradiation to ∼1017n/cm2 (E>1MeV) at 240°C, while a similar amount of Charpy shift was observed after ∼1018n/cm2 (E >1MeV) at higher dose rate (∼7x1011n/cm2/s). The effect of dose rate was obvious in the annealing response on hardness. The recovery characteristics indicated that more stable defects were produced in the material irradiated at a lower dose rate.

Author Information

Suzuki, M
Japan Atomic Energy Research Institute, Ibaraki-ken, Japan
Idei, Y
Japan Atomic Energy Research Institute, Ibaraki-ken, Japan
Kizaki, M
Japan Atomic Energy Research Institute, Ibaraki-ken, Japan
Onizawa, K
Japan Atomic Energy Research Institute, Ibaraki-ken, Japan
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Details
Developed by Committee: E10
Pages: 379–387
DOI: 10.1520/STP13876S
ISBN-EB: 978-0-8031-5395-0
ISBN-13: 978-0-8031-2614-5