Mechanical properties of fine-grained Al-(1, 2, 3)%Zn alloys obtained by Equal Channel Angle Pressing were studied. The recrystallization activation energy was found to decrease with increasing Zn content. The Hall-Petch coefficient for the Al-Zn alloys was found to change nonmonotonously during annealing. An increased Zn concentration at the grain boundaries was shown to result in altering the creep and superplasticity mechanisms of the Al-Zn alloys. The corrosion rate of the Al-Zn alloys was found to depend on the annealing temperature nonmonotonously. The corrosion rate in the Al-(2,3)%Zn alloy was shown to decreasing down to 8-9 mm/year with increasing the annealing temperature up to 200 ^оC. The increasing of the annealing temperature up to 300 ^оC leads to the increasing of the corrosion rate up to 11.4-11.9 mm/year. The obtained results were analyzed on the base of a concept of solid phase wetting of the grain boundaries in the Al by Zn. The effect of solid state wetting of the grains boundaries was shown to allow explaining majority of anomalia observed in the Al-Zn alloys: (i) the effect of the reduction of the recrystallization activation energy; (ii) the effect of a non-monotonous variation of the Hall-Petch coefficient during annealing; (iii) an increasing of plasticity of the Al-Zn alloys in the creep regime, etc. In order to describe the anomalia in the corrosion resistance of the Al-Zn alloys, one should also take into account a nonuniform Zn distribution in the specimens.

研究了等通道角压制获得的细晶Al-(1, 2, 3)%Zn合金的力学性能。发现再结晶活化能随着Zn含量的增加而降低。发现 Al-Zn 合金的 Hall-Petch 系数在退火过程中非单调变化。晶界处 Zn 浓度的增加会导致 Al-Zn 合金的蠕变和超塑性机制发生改变。发现铝锌合金的腐蚀速率非单调地取决于退火温度。腐蚀速度在AL-（2,3）％的Zn合金被证明降低至8-9 毫米/年随退火温度高达200 ^о ℃。退火温度的增加高达300 ^оC 导致腐蚀速率增加到 11.4-11.9 毫米/年。基于Zn对Al中晶界的固相润湿的概念对获得的结果进行了分析。晶界的固态润湿作用被证明可以解释在 Al-Zn 合金中观察到的大部分异常：(i) 再结晶活化能降低的影响；(ii) 退火期间霍尔-佩奇系数的非单调变化的影响；(iii) 蠕变状态下 Al-Zn 合金的塑性增加等。为了描述 Al-Zn 合金耐腐蚀性的异常，还应考虑试样中不均匀的 Zn 分布.