High pressure torsion of binary Cu64.5Zr35.5 alloy

Disks of Cu64.5Zr35.5 composition were deformed by high pressure torsion. The cross‐section and radial dependence of the microstructure was monitored by X‐ray diffraction and scanning electron microscopy. The extreme shear deformation, particularly at the perimeter of the disk promotes the formation of a homogeneous surface layer with a thickness of 10 µm and the blocks of Cu‐enriched regions in the bulk. Calorimetric measurements indicate the presence of a minor amorphous component.

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