Journal of Materials Science

, Volume 44, Issue 1, pp 102–107 | Cite as

Compressive deformation behavior of ternary compound Cr2AlC

  • Wubian Tian
  • ZhengMing Sun
  • Hitoshi Hashimoto
  • Yulei Du


The compressive properties of ternary compound Cr2AlC at different temperatures and strain rates were studied. When tested at a strain rate of 5.6 × 10−4 s−1, the compressive strength decreases continuously from 997 ± 29 MPa at room temperature to 523 ± 7 MPa at 900 °C. The ductile-to-brittle transition temperature is measured to be in the range of 700 to 800 °C. When tested in the strain rate range of 5.6 × 10−5 to 5.6 × 10−3 s−1, Cr2AlC fails in a brittle mode at room temperature, whereas the deformation mode changes from a brittle to a ductile as the strain rate is lower than 5.6 × 10−4 s−1 when compressed at 800 °C. The compressive strength increases slightly with increasing strain rate at room temperature and it is less dependent on strain rate when tested at 800 °C. The plastic deformation mechanism of Cr2AlC was discussed in terms of dislocation-related activities, such as kink band formation, delamination, decohesion of grain boundary, and microcrack formation.


Compressive Strength Intergranular Crack Strain Rate Range Brittle Mode Kink Band 


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Wubian Tian
    • 1
  • ZhengMing Sun
    • 1
  • Hitoshi Hashimoto
    • 1
  • Yulei Du
    • 1
  1. 1.Materials Research Institute for Sustainable DevelopmentNational Institute of Advanced Industrial Science and Technology (AIST)NagoyaJapan

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