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.
出处
《振动与冲击》
EI
CSCD
北大核心
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)
