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Benchmarking of Mechanical Test Facilities Related to ITER CICC Steel Jackets
Vostner, A.,Pong, I.,Bessette, D.,Devred, A.,Sgobba, S.,Jung, A.,Weiss, K.,Jewell, M. C.,Liu, S.,Yu, W.,Boutboul, T.,Hamada, K.,Park, S.,Tronza, V.,Walsh, R. P. IEEE 2013 IEEE transactions on applied superconductivity Vol.23 No.3
<P>The International Thermonuclear Experimental Reactor (ITER) cable-in-conduit conductor used in the superconducting magnet system consists of a cable made of 300 to 1440 strands housed in a stainless steel tube (called as jacket or conduit). There are circular, square, as well as circle-in-square jackets, made of either a very low carbon AISI 316LN and AISI 316L grade stainless steels, or a high Mn austenitic stainless steel developed for ITER called JK2LB. Selected mechanical properties of the base material and weld joint were tested at room temperature and/or cryogenic temperatures (<; 7 K) at predefined mechanical deformation and heat treatment condition. The domestic agencies' reference laboratories and the ITER-IO appointed reference laboratories, CERN and Karlsruhe Institute of Technology performed mechanical tests such as tensile strength, fracture toughness, and fatigue crack growth rate. This paper will compare the test results (e.g., elongation to failure) from different laboratories, present the statistics, and identify any systematic differences.</P>
Results of a New Generation of ITER TF Conductor Samples in SULTAN
Bruzzone, P.,Stepanov, B.,Wesche, R.,Salpietro, E.,Vostner, A.,Okuno, K.,Isono, T.,Takahashi, Y.,Hyoung Chan Kim,Keeman Kim,Shikov, A.K.,Sytnikov, V.E. IEEE 2008 IEEE transactions on applied superconductivity Vol.18 No.2
<P>A new generation of ITER TF conductor samples has been assembled and tested in SULTAN in 2007 following a common procedure agreed among the ITER parties. The test results of six SULTAN samples, made of twelve conductor sections manufactured in Europe, Japan, Korea and Russia, are reported here. The conductor layout reflects the ITER TF conductor design, with minor differences for the Nb<SUB>3</SUB>Sn strand characteristics, void fraction and twist pitch. The object of the test is a straight comparison with the ITER requirement of 5.7 K current sharing temperature at 68 kA current and 11.3 T field. A broad range of behavior is observed.</P>