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정재용(J. Y. Jung),김근준(K. J. Kim),나길환(G. H. Na),하태권(T. K. Ha) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5
Superplastic deformation behavior and texture evolution after equal channel angular pressing (ECAP) of Zn-0.3Al alloy were investigated in this study. ECAP was conducted at temperatures form 40℃ to 160℃ on the plate type specimens of 5 mm thickness and 20 mm width. The specimens obtained by ECAP showed typical texture with basal poles tilted away from the ND toward ED. A series of compression and tensile tests was carried out at temperatures from RT TO 200℃ under the strain rate from 0.03 to 10/s. After ECAP of the Zn-Al alloy, elongation was dramatically increased up to 1000% at above 60℃. The effects of ECAP on the texture and anisotropy in the superplastic deformation bebavior were found to be negligible.