Effect of different sizes of balls on crystalline size, strain, and atomic diffusion on Cu-Fe nanocrystals produced by mechanical alloying

Effects of ball diameter on the crystalline size, induced strain, and atomic diffusion in Cu-50%Fe immiscible alloysystem have been investigated. Milling parameters affect atomic diffusion in binary or ternary systems separately.The aim of this research work is to prove the fact that ball diameter is an important parameter. It is shown thatdifferent diameters can change milling power, and consequently, the final crystalline size and atomic diffusion canalter. X-ray diffraction and scanning electron microscopy were used to analyze the effect of ball diameter. It isshown that the strain increases from 0.0025 to 0.0052, while the crystalline size decreases to 18 nm.

Keywords:

Mechanical alloying , Cu-Fe , Immiscible systems , Diffusion , Nanocrystals , Williamson-Hall