• Title of article

    Ductility improvement and fatigue studies in Mg-CNT nanocomposites

  • Author/Authors

    C.S. Goh، نويسنده , , J. Wei، نويسنده , , L.C. Lee، نويسنده , , M. Gupta، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2008
  • Pages
    8
  • From page
    1432
  • To page
    1439
  • Abstract
    The ductility improvement and fatigue behaviour of magnesium reinforced with 1.3 wt% of carbon nanotubes (CNTs) were investigated in this study. Dislocation studies were conducted to determine the deformation behaviour of the nanocomposite. A comparison was made between Mg-1.3CNT nanocomposite and monolithic Mg to identify the effect of CNTs on Mg. Ductility improvement was found to be the result of the high activity of the basal slip system and the initiation of prismatic 〈a〉 slip. Constant stress amplitude cyclic tests revealed that the cycles to failure for the Mg-1.3CNT nanocomposite is lower than that of the monolithic Mg. Both monolithic Mg and Mg-1.3CNT nanocomposite were found to harden upon cycling. The formation of sessile forest dislocations was identified as one of the main hardening causes.
  • Keywords
    B. Fatigue , D. Transmission electron microscopy (TEM) , A. Metal matrix composites , Carbon nanotubes
  • Journal title
    COMPOSITES SCIENCE AND TECHNOLOGY
  • Serial Year
    2008
  • Journal title
    COMPOSITES SCIENCE AND TECHNOLOGY
  • Record number

    1042940