Mechanical Behavior of Nanocrystalline Aluminum (I) : Experiments

나노결정 알루미늄의 기계적 거동 (I): 실험

  • Khan Akhtar S. (Department of Mechanical Engineering, University of Maryland, Baltimore County) ;
  • Chen Xu (School of Chemical Engineering and Technology, Tianjin University) ;
  • Takacs Laszlo (Department of Physics, University of Maryland, Baltimore County) ;
  • Suh Yeong Sung
  • ;
  • ;
  • ;
  • 서영성 (한남대학교 기계공학과)
  • Published : 2005.10.01

Abstract

The responses of nanocrystalline aluminum powder of different grain sizes, prepared by ball milling and consolidated into bulk specimens by hot pressing, were determined under quasi-static and dynamic compression. The experiments demonstrated that the reduction in grain size resulted in several-fold increase in hardness and strength; the responses of nanocrystalline aluminum was found to be strain-rate dependent.

Keywords