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Achieving Ultra-High-Strength and Good Ductility of the ZK60 Alloy Sheet by High Strain-Rate Rolling
Songhui Wang,Wencong Zhang,Jianlei Yang,Xeuyan Jiao,Jinqi Pan,Guannan Chu,Xiangyu Dai 대한금속·재료학회 2023 METALS AND MATERIALS International Vol.29 No.4
A superior combination of the ultra-high tensile strength (~ 419.9 MPa), the yield strength (~ 376.9 MPa) and the elongation(~ 14.8%) ZK60 sheet was successfully achieved by high-strain rate rolling. The ultrahigh strength was attributed to theuniform ultrafine-grained structure. The excellent ductility was ascribed to the ultrafine grains, low dislocation density andweakened basal texture in the final structure.