The effect of different kinds of alloying elements （0. 01-0. 5Ti

0. 001

0

. 2B

0. 01

0. 8Zr

0. 01

1

. 5Cr

0. 01

1

.0wt% Re） on mechanical properties and internal friction （Q-1） of Zn-（18-27） AlMnCuSiMg new type high damping alloy was investigated by single factor varied levels and L8（27） table of orthogonal array. As a result

the high damping capacity of the alloy depends on the mobile phase boundries and the quantities of the grain-boundries. The above alloying elements can refine the micro-structures and increase the quantities of the mobile boundries and the value of the internal friction

in addition to improving mechanical strength and elongation. It has been also

shown that Zr

Ti and B added at same time has some good interaction by analysis of variance and the effect is better than any single element.