Science China Physics, Mechanics and Astronomy

, Volume 55, Issue 11, pp 2057–2061

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

Authors

  • YanYong Zhu
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
    • Central Iron and Steel Research Institute
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
  • Jin Gao
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
  • WenTuo Han
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
  • YiNa Huang
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
    • Department of Engineering PhysicsUniversity of Wisconsin
  • ShaoNing Jiang
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
  • JianSheng Qiao
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
    • China Institute of Atomic Energy
  • Fei Zhao
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
    • Department of Material PhysicsGuizhou University
  • ShanWu Yang
    • Department of Materials Physics and ChemistryUniversity of Science and Technology Beijing
  • Somei Ohnuki
    • Faculty of EngineeringHokkaido University
  • Naoyuki Hashimoto
    • Faculty of EngineeringHokkaido University
Article

DOI: 10.1007/s11433-012-4865-8

Cite this article as:
Zhu, Y., Wan, F., Gao, J. et al. Sci. China Phys. Mech. Astron. (2012) 55: 2057. doi:10.1007/s11433-012-4865-8

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

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2012