L.S. Yang
,
Y.C Liu
,
G.C Yang and Y.H Zhou(State Key Lab. of Solidification Processing
,
Northwestern Polytechnical University Xi'an 710072
,
China)
金属学报(英文版)
The damping capacities (Q-1) of high silicon (6wt%) Zinc-27wt% Aluminia alloy prepared by spray deposition and conventional casting process were investigated. Three methods, free-decay, half-power band width and phase angles difference, have been ased to measure the damping capacities of the experimental materiale. The experimental results indicate that the damping capacity of spray deposited material is 3.7times larger than that of the conventional casting alloy ZA27 The machanism for its improvement was aiso investigated from a microstructvre viempoint.
关键词:
high damping alloy
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