On the stability and structure of Zr-Cu and Zr-Ti-Cu alloys

The alloys Zr-Cu-Ti and Zr-Cu have been prepared by melt-spinning and mechanical alloying techniques. Their thermal behaviour and structure factors have been investigated. Thermal properties obtained by differential scanning calorimetry, of an amorphous alloy (54Zr34Cu10Ti), were tested in argon and nitrogen atmospheres. It was shown that crystallization (devitrification) proceeds through five different stages within the temperature range 565 to 976 K. Particular attention is paid to a discussion of the crystallization process of each stage in correlation with the results obtained by X-ray analysis