An investigation has been made on the fine grain supeoplasticity of alloy, Cu-26.69%Zn-3.82% Al and its effect of superpolastic deformation (SPD) on the shape memory effect (SME).This alloy has the behavior of the fin...An investigation has been made on the fine grain supeoplasticity of alloy, Cu-26.69%Zn-3.82% Al and its effect of superpolastic deformation (SPD) on the shape memory effect (SME).This alloy has the behavior of the fine grain superplasticity and SME simultaneousty. The rolledstructure of the alloy obtains equiaxial grains after the supeaplastic pretreatment. The alloy presentsmaximum total elogation of 545%, at the deformation temperature of 600℃ and the tensile rate of0.5mm / min. After supeperplastic deformation, the memory effect of the alloy is remarkably im-proved, the angle recovery rate and the enthalpies of transformation increase, the attenuation ofSME decreases, and the characteristic temperatures are lowered.展开更多
文摘An investigation has been made on the fine grain supeoplasticity of alloy, Cu-26.69%Zn-3.82% Al and its effect of superpolastic deformation (SPD) on the shape memory effect (SME).This alloy has the behavior of the fine grain superplasticity and SME simultaneousty. The rolledstructure of the alloy obtains equiaxial grains after the supeaplastic pretreatment. The alloy presentsmaximum total elogation of 545%, at the deformation temperature of 600℃ and the tensile rate of0.5mm / min. After supeperplastic deformation, the memory effect of the alloy is remarkably im-proved, the angle recovery rate and the enthalpies of transformation increase, the attenuation ofSME decreases, and the characteristic temperatures are lowered.
