Abstract
This study focuses on the mechanical alloying behaviour of equiatomic Cu–Nb powder mixtures subjected to ball milling at temperatures between 300 and 900K. A homogeneous amorphous phase forms at room temperature. The increase of processing temperature promotes the formation of mixtures of amorphous and nanostructured Cu and Nb phases below 650K, and of nanostructured Cu–Nb composites above 650K. The grain size of Cu and Nb phases increases with temperature according to a power-law kinetics.
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