金属丝特性对金属橡胶疲劳性能的影响

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (24) : 137-142.

论文

金属丝特性对金属橡胶疲劳性能的影响

卢成壮1,李静媛1,周邦阳1,方旭1，李毅2，赫荣辉2

作者信息 +

Effect of metallic wire materials characteristics on the fatigue properties of metal rubber

LU Chengzhuang1，LI Jingyuan1，ZHOU Bangyang1，FANG Xu1，LI Yi2，HE Ronghui2

Author information +

文章历史 +

摘要

针对应用于振动环境中金属橡胶的疲劳强度问题，结合其原材料不锈钢丝的性质，提出了在保证高强度条件下选择单相奥氏体组织钢丝能提高金属橡胶的疲劳性能，并以两种不同材质不锈钢丝制备的金属橡胶为例，通过实验对比两种材料的性质和其制备的金属橡胶疲劳振动加速实验的影响。结果表明：金属橡胶的动态平均刚度随着振动时间逐渐衰减，内部金属丝性质和螺旋卷的接触状态影响其动态平均刚度值和衰减变化量，通过对材料组织物相分析发现，单相奥氏体的金属丝具有良好的韧性，其制备的金属橡胶动态刚度振动中衰减慢，质量损耗量少；而组织为形变马氏体和残余奥氏体的金属丝则反之。因此，在提高金属橡胶的疲劳强度的条件下，并满足初始设计的力学性能，有必要采用单相奥氏体组织状态的金属丝。

Abstract

The single austenite metallic wire was chosen to the metal rubber fabrication, combined with the materials characteristics, to improve the fatigue properties of metal rubber in vibration environment.The metal rubber fabricated by two different wire materials was investigated by the comparative analysis of the wire materials properties in fatigue vibration acceleration tests.The effects of the materials characteristics on fatigue properties of metal rubber were discussed.The results showed the dynamic average stiffness of metal rubber decreases with vibration time and its variation was affected by the inner wire material property and the contact state of spiral coils.The analysis of microstructure and phase reveals that the single austenite metallic wire material possessed excellent toughness.The loss of metal rubber stiffness and mass made by austenite metallic wire was minimum reduction.However, the wire with the deformation martensite and retained austenite was opposite.It is concluded that the single phase austenite metallic wire is necessary for the metal rubber to obtain higher fatigue properties of metal rubber.

导出引用

卢成壮1,李静媛1,周邦阳1,方旭1，李毅2，赫荣辉2. 金属丝特性对金属橡胶疲劳性能的影响[J]. 振动与冲击, 2018, 37(24): 137-142

LU Chengzhuang1，LI Jingyuan1，ZHOU Bangyang1，FANG Xu1，LI Yi2，HE Ronghui2. Effect of metallic wire materials characteristics on the fatigue properties of metal rubber[J]. Journal of Vibration and Shock, 2018, 37(24): 137-142

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