Thermal Stability of Nanocrystalline AlCuZr Alloy Prepared by Mechanical Alloying

Abstract

In present study, grain growth kinetics and thermal stability of nanocrystalline Al based alloys was studied and processed through a powder metallurgy technique called mechanical alloying. The elemental (Al, Cu and Zr ) powder was mixed and blended using high energy ball milling for 8h and followed by conventional sintering at a temperature of (550°C) for 1h. The produced Al alloy was analysed by means of analytical techniques XRD (X-ray diffraction), TEM(Transmission Electron Microscopy), DSC (Differential Scanning Calorimetry), SEM (Scanning Electron Microscopy) and energy dispersive spectrometry.