抄録
Zn-Al eutectoid alloy with nanocrystalline structure was developed by means of Thermo Mechanical controlling process (TMCP). In order to use the material as high performance and maintenance-free seismic damper, the deformation behavior was examined. The each phase was equixed with an average size of 1.7μm, and nanocrystalline Zn particles in Al-rich phases were observed. The tensile test revealed that the m-value exhibited about 0.3 in the low strain rate regime and the maximum value of 200% elongation at room temperature was obtained at a strain rate of (10)^<-5>s^<-1>. It was apparent that the materials had higher performance than the low yield point steel that was generally used as the seismic device.
