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一、引言A.S.Nowick 及K.Nuttel 用低频扭摆法研宄了二种.Al-Zn 二元合金丝的内耗,T.Otani 等研究了三元Al-Zn 铸造阻尼合金SDC 随频率的变化,作者们研宄Al-Zn 多元阻尼合金时,注意到层片状为主的显微组织其阻尼特征,实际应用时受到较大限制,这就使我们有兴趣研究细小等轴晶组织及其阻尼特性,固溶时效对多元Al-Zn 阻尼合金内耗温度谱,频率谱的影响。
I. INTRODUCTION ASNowick and K.Nuttel studied two kinds of low-frequency twist-off method, the internal friction of Al-Zn binary alloy wire, T.Otani et al. Studied the variation of SDC of damping alloy SDC with frequency of ternary Al-Zn casting. When studying the Al-Zn multi-damping alloy, we noticed the damping characteristics of the lamellar-based microstructure, which was limited by the practical application. This made us interested in studying the microstructure of the equiaxed grains and their damping properties, Effect of Solution and Aging on Internal Temperature Loss Spectrum and Frequency Spectrum of Al-Zn Damping Alloys.