Welding technology in TF coil of international thermonuclear experimental reactor (ITER) project

Takano, Katsutoshi

Japan Atomic Energy Agency is responsible for 9 TF coils and 19 TF coil structures as Japanese domestic agency in the ITER project. To apply the special environment, which is the high magnetic field and the cryogenic temperature of 4 K, high strength and high toughness are required for materials of the superconducting coil. Thus, fully austenite stainless steel is selected. Advanced welding technology is needed to control the crack sensitivity by welding and ensure high reliability of welding. To solve these issues, trials for the optimization of the chemical composition and the welding condition are conducted. As a result, high quality of welding for fully austenite stainless steel was successfully achieved. By applying this result, manufacturing of actual TF coils for the ITER was started.

Language	:	Japanese
Journal	:	Haikan Gijutsu
Volume	:	57
Number	:	10
Pages	:	p.7 - 12
Publication Year/Month	:	2015/09
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Paper URL	:	http://ci.nii.ac.jp/naid/40020562730
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Keywords	:	no keyword
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Registration No. : AA20150164
JAEA Abstracts No. : 43001461
Paper Submission No. : 16541

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