Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Evaluation on Creep Properties of Reduced Activation Ferritic Steel(RAFs) for Nuclear Fusion Reactor

핵융합로용 저방사화 철강재료(RAFs)의 크리프 특성평가

  • Published : 2004.04.01
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Abstract

Reduced Activation Ferritic/Martensitic Steels (RAFs) are leading candidntes for structural materials of a D-T fusion reactor. One of the RAFs, JLF-l (9Cr-2W-V, Ta) has been developed and has shown to have good resistance against high-fluency neutrino irradiation and good phase stability. Recently, in order to clarify the strengthening mechanisms at high temperatures, a new scheme to improve high temperature mechanical properties is desired. Therefore, the test technique development of high temperature creep behaviors for this material is very important. In this paper, the creep properties and creep life prediction, using the Larson-Miler parameter method for JLF-l to be used for fusion reactor materials or other high temperature components, are presented at the elevated temperatures of 50$0^{\circ}C$, 55$0^{\circ}C$, $600^{\circ}C$, $650^{\circ}C$ and 704$^{\circ}C$. It was confirmed, experimentally and quantitatively, that a creep life predictive equation, at such various high temperatures, is well derived mr the LMP method.

Keywords

References

  1. $6^$th Int. Symp. on Fusion Nuclear Technology(ISFNT-6),PLEN 1,2 Recent Advances in Chamber Science and Technology Abdou M.
  2. JUPITER Workshop on Recent Progress in RAFs Furuya,K.;Enoeda,M.;Kuroda,T.;Ohara Y.;Mohri K.
  3. KSME Int. J. v.15 no.11 Creep Characterization of Type 316LN and HT-9 Stainless Steels by the K-R Creep Damage Model Kim,W.G.;Kim,S.H.;Ryu,W.S.
  4. J. of Nuclear Material v.233 no.237 Low-Activation Ferritic and Martensitic for Fusion Application Kohyama,A.;Hishinuma,A.;Gelles,D.S.;Klueh,R.L.;Dietz,W.;Ehrlich K.
  5. J. of Nuclear Materials v.212 no.215 Irradiation Creep of Low Activation Ferritic Steels in FFTF/MOTA Kohyama,A.;Kohno,Y.;Asakura,K.;Yoshino,M.;Namba C.;Eiholzer C.R.
  6. KSME Int. J. v.17 no.4 Creep Life Predication for Udimet720 Material Using the Initial Strain Method(ISM) Kong,Y.S.;Yoon,H.K.;Oh,S.K.
  7. Transaction of the ASME A Time Temperature Relationship for Rupture and Creep Stresses Larson F.R.;Miller J.
  8. $6^$th Int. Symp. on Fusion Nuclear Technology(ISFNT-6),PLEN 1,4 Overview of Materials Research for Fusion Reactors Muroga,T.;Gasparotoo,M.;Zinkle,S.J.
  9. The Creep of Steel at High Temperatures The Creep of Steel at High Temperatures Norton,F.H.
  10. J. of Ocean Engineering and Technology v.2 no.2 Creep Prediction by Initial Strain Method for Aging Treated Friciton Welds of Heat Resisting Steels Oh,S.K.;Kong,Y.S.;Yang,H.T.