NDLI: Manufacturing and Fatigue Tests of PF1 Coil Helium Inlet

Content Provider	IEEE Xplore Digital Library
Author	Stepanov, D.B. Khitruk, A.A. Klimchenko, Y.A. Marushin, E.L. Mednikov, A.A. Nasluzov, S.N. Rodin, I.Y. Sukhanova, M.V. Litvinovich, A.V.
Copyright Year	2002
Description	The Poloidal Field (PF1) coil is one of six PF coils of the ITER magnet system. The PF1 is composed as a stack of eight double pancakes (DPs). The DPs are wound from NbTi superconducting cable “cable-in-conduit” type and have cooling by liquid helium. The supplying of liquid helium is carried out through helium inlets, which are one of the critical structural elements of DPs and PF1. During the PF1 coil operating, helium inlets are undergone by cyclic mechanical loads. In this case, it is necessary to check the design of helium inlets by carry out fatigue tests at cryogenic temperature. In 2013, the design of helium inlets was changed. In accordance to these changes, the new manufacturing process of helium inlet was developed. A new helium inlet sample was manufactured. The fatigue tests of this sample were carried out in accordance to ASTM standard E739-91(1998) “Standard Practice for Statistical Analysis of Linear or Linearized Stress-Life (S-N) and Strain-Life (e-N) Fatigue Data.” This paper presents comparative analysis of manufacturing process of previous and new helium inlet designs, details, and results of fatigue tests.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	1
Ending Page	4
Page Count	4
File Size	513594
File Format	PDF
ISSN	10518223
Volume Number	25
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Helium Welding Fatigue Coils Superconducting cables Metals Stress fatigue test PF-1coil helium inlet design NbTi superconducting cable
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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