(吉林工业大学金属材料工程系，长春130025)
摘 要: 对Zn78Al22合金在铸造和固溶处理之后，采用塑性变形和循环相变再加上时效，可以减小晶粒尺寸。结果表明，采用315、300℃加热、室温时效、循环相变5次或300℃加热0℃时效，可使合金的粒状晶粒尺寸减小到100nm。
关键字: Zn-Al合金 钠米级合金 循环相变 细晶粒
NANOSTRUCTURED Zn-Al ALLOY
（Deptartment of Metal Material Engineering, Jilin University of Technology, Changchun 130025）
Abstract:After casting and solution-treatment on Zn78Al22alloy, the phase transformation circles, the plastic deformation and aging were used to decrease the grain size of the alloys. The results show that the granular grain size of the alloys can be decreased to 100nm by the phase transformation circles when the heating temperature is 315℃and the aging temperature is ambient one or when the heating temperature is 300℃and the aging temperature is 0℃.
Key words: Zn-Al alloy nanostructured alloy phase transformation circle fine grain
