SYMPOSIA PAPER Published: 01 January 2004
STP11272S

Microstructure Response in Copper and Copper Alloys Irradiated with Fission Neutrons with Controlled Temperature Variations

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The effects of temperature variation on microstructural evolution were investigated for Cu, Cu-5Ni, Cu-3.5Zn, and Cu-5Ni-2Zn irradiated in JMTR and HFIR. The low temperature pre-irradiation at 477 K to 533 K was shown not to influence microstructural evolution significantly during the following irradiation at 613 K to 693 K. On the other hand, downward temperature shift during irradiation was shown to produce void formation in Cu and Cu-3.5Zn. The mechanism of the temperature variation effects was discussed based on the defect properties and the details of the temperature transient history during irradiation.

Author Information

Muroga, T
National Institute for Fusion Science, Gifu, Japan
Watanabe, H
Research Institute for Applied Mechanics, Kyushu University, Fukuoka, Japan
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Developed by Committee: E10
Pages: 753–762
DOI: 10.1520/STP11272S
ISBN-EB: 978-0-8031-5494-0
ISBN-13: 978-0-8031-3477-5