Science China Physics, Mechanics and Astronomy

, Volume 55, Issue 11, pp 2057–2061 | Cite as

Mechanical property and irradiation damage of China Low Activation Martensitic (CLAM) steel

  • YanYong Zhu
  • FaRong Wan
  • Jin Gao
  • WenTuo Han
  • YiNa Huang
  • ShaoNing Jiang
  • JianSheng Qiao
  • Fei Zhao
  • ShanWu Yang
  • Somei Ohnuki
  • Naoyuki Hashimoto
Article

Abstract

China Low Activation Martensitic (CLAM) steel is being studied to develop the structural materials for a fusion reactor, which has been designed based on the well-known 9Cr1.5WVTa steel. The effect of tempering temperature on hardness and microstructure of CLAM steel was studied. The strength of CLAM steel increased by adding silicon, and the ductility remained constant. Conversely, while CLAM steel maintained good ductility with the addition of yttrium, its tensile strengths were greatly degraded. Behaviors under electron irradiation of CLAM steel were examined using the high voltage electron microscope. Electron irradiation at 450°C formed many voids in CLAM steel with basic composition, whereas CLAM with silicon steel did not change the microstructure significantly.

Keywords

low activation ferritic/martensitic steel mechanical property electron irradiation irradiation damage silicon yttrium 

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References

  1. 1.
    Muroga T, Gasparotto, Zinkle S J. Overview of materials research for fusion reactors. Fusion Eng Design, 2002, 61–62: 13–25CrossRefGoogle Scholar
  2. 2.
    Victoria M, Gavillet D, Sptitig P, et al. Microstructure and mechanical properties of newly developed low activation martensitic steels. J Nucl Mater, 1996, 233-237: 326–330ADSCrossRefGoogle Scholar
  3. 3.
    Fernández P, Lancha A M, Lapeña J, et al. Metallurgical characterization of the reduced activation ferritic/martensitic steel Eurofer’97 on as-received condition. Fusion Eng Design, 2001, 58–59: 787–792CrossRefGoogle Scholar
  4. 4.
    Klueh R L, Gelles D S, Jitsukawa S, et al. Ferritic/martensitic steels—overview of recent results. J Nucl Mater, 2002, 307–311: 455–465CrossRefGoogle Scholar
  5. 5.
    Song Y, Chen Q, Wu Y, et al. A study of effect of yttrium in low-alloy martensitic cast steel (in Chinese). Mater Mech Eng, 1994, 18: 35–35Google Scholar
  6. 6.
    Pan F, Ding P, Zhou S, et al. Effects of silicon additions on the mechanical properties and microstructure of high speed steels. Acta Mater, 1997, 45: 4703–3712CrossRefGoogle Scholar
  7. 7.
    Faulkner R G, Song S, Flewitt P E J. Irradiation-induced silicon segregation in ferritic steels. J Nucl Mater, 1994, 212–215: 608–611CrossRefGoogle Scholar
  8. 8.
    Nikolaeva A V, Nikolaev Y A, Kryukov A M. The contribution of grain boundary effects to low-alloy steel irradiation embrittlement. J Nucl Mater, 1994, 218: 85–93ADSCrossRefGoogle Scholar
  9. 9.
    Zhang Q, Yang J. Microstructure and properties of bainite-martensite steel plate (in Chinese). Heat Treat Metals, 2004, 29: 46–48Google Scholar
  10. 10.
    Muroga T, Yoshida N, Kitajima K. EDS investigation of solute-precipitate interactions in ferritic steels under irradiation. Ultramicroscopy, 1987, 22: 281–288CrossRefGoogle Scholar

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • YanYong Zhu
    • 1
    • 2
  • FaRong Wan
    • 1
  • Jin Gao
    • 1
  • WenTuo Han
    • 1
  • YiNa Huang
    • 1
    • 3
  • ShaoNing Jiang
    • 1
  • JianSheng Qiao
    • 1
    • 4
  • Fei Zhao
    • 1
    • 5
  • ShanWu Yang
    • 1
  • Somei Ohnuki
    • 6
  • Naoyuki Hashimoto
    • 6
  1. 1.Department of Materials Physics and ChemistryUniversity of Science and Technology BeijingBeijingChina
  2. 2.Central Iron and Steel Research InstituteBeijingChina
  3. 3.Department of Engineering PhysicsUniversity of WisconsinMadisonUSA
  4. 4.China Institute of Atomic EnergyBeijingChina
  5. 5.Department of Material PhysicsGuizhou UniversityGuiyangChina
  6. 6.Faculty of EngineeringHokkaido UniversitySapporoJapan

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