Depositing and alloying on the inner surface of Gasar Cu pores were realized by plating Zn and subsequent annealing treatment. Influences of cathode current and plating time on alloy layer thickness at different positions along the pore axial direction were investigated. The obtained results showed that alloy layers with different thickness were formed on the overall inner surface of pores. Phase constitution of alloy layers was determined by energy dispersive X-ray analysis and the phase diagram of Cu-Zn. It was found that the generating sequence of alloy phases was gamma ->beta'->alpha. Based on the thickness of each phase measured from field emission scanning electron microscopy images, the relationship between phase thickness and annealing time was obtained. (C) 2015 Elsevier B.V. All rights reserved.