Crystallization Behavior of Zr62Al8Ni13Cu17 Metallic Glass

The crystallization behavior has been studied in Zr₆₂Al₈Ni₁₃Cu₁₇ metallic glass alloy. The Zr₆₂Al₈Ni₁₃Cu₁₇ metallic glass crystallized through two steps. The fcc Zr₂Ni phase transformed from the amorphous matrix during first crystallization and then the Zr₂Ni and residual amorphous matrix transformed into a mixture of tetragonal Zr₂Cu and hexagonal Zr₆Al₂Ni phases. Johnson- Mehl-Avrami analysis of isothermal transformation data suggested that the formation of crystalline phase is primary crystallization by diffusion-controlled growth.