Project (50271054) supported by National Natural Science Foundation of China;Project (20070700003) supported by Ph.D. Programs Foundation of Ministry of Education of China;Project (102102210031) supported by Science and Technologies Foundation of Henan,China;Project (2010A430008) supported by Natural Science Foundation of Henan Educational Committee,China
Fine-grained ZK60 alloy was prepared by 2-pass reciprocating extrusion, and the low temperature superplasticity was conducted in a temperature range from 443 to 523 K and an initial strain rate ranging from 3.3×10^-4...