微量锆对Zn-22％Al合金阻尼稳定性的影响

EFFECT OF TRACE Zr ON STABILITY OF DAMPING CAPACITY OF Zn 22%Al ALLOY

采用自然时效、人工时效等热处理工艺研究了微量锆对Ｚｎ２２％Ａｌ合金阻尼性能（内耗）的影响。结果表明，微量锆可提高Ｚｎ２２％Ａｌ合金的阻尼稳定性。运用电子显微镜和Ｘ射线衍射仪对未加锆和加锆的试样进行观察和分析。

The effect of trace Zr on the damping capacity of Zn 22%Al alloy was studied by using natural ageing and artificial ageing. The results showed that trace Zr can improve the stability of damping capacity of the alloy. TEM observations and X ray diffraction analyses for samples with or without Zr revealed the reasons of Zr slowing the reduction of damping capacity of Zn 22%Al after ageing.