Fe-Cr-Mo、Cu-Zn-Al、Fe-Mn合金减振性能的研究  

THE VIBRATION DAMPING CAPACIUY OF Fe-Cr-Mo, Cu-Zn-Al AND Fe-Mn ALLOYS

作　　者：黄姝珂[1] 李宁[1] 文玉华[1] 胥永刚[2] 滕劲[1] 丁胜[1] 

机构地区：[1]四川大学制造科学与工程学院,成都610065 [2]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《振动与冲击》2007年第9期24-26,共3页Journal of Vibration and Shock

基　　金：上海交通大学机械系统与振动国家重点实验室开放基金(VSN-2007-04)

摘　　要：针对目前不同阻尼合金之间可比性差的问题,采用同种测试方法研究了Fe-Cr-Mo、Cu-Zn-Al和Fe-Mn三种阻尼合金的阻尼性能和力学性能,有利于针对实际应用条件选取合适的合金。利用倒扭摆测试合金阻尼性能,万能实验机测试力学性能。结果表明:同18-8不锈钢相比,三种合金都具有显著的高阻尼性能;Fe-Cr-Mo合金的阻尼性能随着应变振幅增加而迅速增加,在1×10-4～2×10-4范围内出现峰值,随后又逐渐下降;Cu-Zn-Al合金的阻尼性能随着应变振幅的增加而增加,在2×10-4左右出现平台;Fe-Mn合金的阻尼性能随应变振幅的增加呈现线性增加趋势。Fe-Mn合金的综合力学性能最好,Fe-Cr-Mo合金次之,Cu-Zn-Al合金最低。In order to solve the problem that different damping alloys are incomparable, the damping and mechanical capacity of Fe-Cr-Mo, Cu-Zn-Al and Fe-Mn alloys are studied using the same reversal torsional pendulum and the universal material testing machine. The results indicate that these alloys all display high damping capacity compared with 18-8 stainless steel. With strain amplitude increasing, the damping capacity of Fe-Cr-Mo alloy increases quickly and reaches the maximum between the value of 1×10-4～2×10-4, and then decreases sharply. The damping capacity of Cu-Zn-Al alloy also increases when strain amplitude increases and reaches the maximum at the value of 2×10-4, and then keeps this value with higher strain amplitude. The damping capacity of Fe-Mn alloy increases linearly with strain amplitude increasing. The mechanical capacity of Fe-Mn alloy is the best, and that of Fe-Cr-Mo alloy is the middle, and that of Cu-Zn-Al alloy is the lowest.

关 键 词：阻尼合金 Fe-Cr-Mo CU-ZN-AL FE-MN 阻尼机制 振幅效应 

分 类 号：TG135.7[一般工业技术—材料科学与工程]