SYMPOSIA PAPER Published: 01 January 1993
STP12737S

Methods and Devices for Small Specimen Testing at the Japan Atomic Energy Research Institute

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Devices for a punch test on annular notched specimens, small punch (SP) tests, and miniaturized tension tests in hot cells were developed. A micro-manipulator to handle small specimens and an electro-discharge machine (EDM) to extract miniaturized tension specimens and annular notched specimens from transmission electron microscopy (TEM) disks were also fabricated. These devices were designed and made for remote operation in hot cells. Preliminary tests to evaluate the applicability of test methods were carried out. Correlation between SP test results and tensile properties was not strong. Miniaturized tensile results were reasonably similar to the results with larger specimens. The ductile-brittle transition temperature (DBTT) by the punch test on annular notched specimens was higher than that obtained from the SP test. However, materials dependence of the DBTT was different from that measured by standard Charpy V-notch (CVN) tests. This may be due to a specimen size effect.

Author Information

Jitsukawa, S
Japan Atomic Energy Research Institute, Tokai-Mura, Ibaraki-Ken
Kizaki, M
Japan Atomic Energy Research Institute, Tokai-Mura, Ibaraki-Ken
Umino, A
Japan Atomic Energy Research Institute Oarai Branch, Oaria-Machi, Ibaraki-Ken, Japan
Shiba, K
Japan Atomic Energy Research Institute, Tokai-Mura, Ibaraki-Ken
Hishinuma, A
Japan Atomic Energy Research Institute, Tokai-Mura, Ibaraki-Ken
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Details
Developed by Committee: E10
Pages: 289–307
DOI: 10.1520/STP12737S
ISBN-EB: 978-0-8031-5250-2
ISBN-13: 978-0-8031-1869-0