固溶热处理对Fe-Mn金属橡胶力学性能的影响  

Effect of solution heat treatment on the mechanical performance of Fe-Mn metal rubber

作　　者：辛泰阿 苏明杨 李诗成[2] 宋世彬 王金宇 邵一川 XIN Taia;SU Mingyang;LI Shicheng;SONG Shibin;WANG Jinyu;SHAO Yichuan(Engineering Research Center for Metal Rubber,School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116,China;Aerospace Research Institute of Materials&Processing Technology,Beijing 100076,China)

机构地区：[1]福州大学机械工程及自动化学院金属橡胶工程研究中心,福州350116 [2]航天材料及工艺研究所,北京100076

出　　处：《现代制造工程》2022年第9期82-90,共9页Modern Manufacturing Engineering

基　　金：国家自然科学基金青年科学基金项目(12002088)。

摘　　要：为探索进一步提高金属橡胶阻尼性能的方法,采用Fe-Mn阻尼合金丝材制备了金属橡胶,并将其与304不锈钢丝制备的金属橡胶进行对比研究,分析了不同固溶热处理状态下Fe-Mn金属橡胶在静态和动态载荷下的力学行为。结果表明:未经固溶热处理的Fe-Mn金属橡胶在静态载荷和动态载荷下的阻尼耗能能力均优于304不锈钢金属橡胶相应的阻尼耗能能力,但是其承载能力低于304不锈钢金属橡胶的承载能力。通过固溶热处理可以牺牲一部分阻尼性能来获得Fe-Mn金属橡胶承载能力的显著提升,使其静态刚度和动态刚度最高可分别达到未进行固溶热处理状态时的2.2和2.7倍。静态载荷和动态载荷下的Fe-Mn金属橡胶可表现出不同的微观阻尼机制和固溶热处理效果。静态载荷条件下,200℃时的固溶热处理可增强Fe-Mn金属橡胶静滞后的阻尼效应,从而获得高于未进行固溶热处理样品的损耗因子。而动态载荷条件下,固溶热处理效应主要表现为对Fe-Mn金属橡胶刚度的提升,反而削弱了滞弹性阻尼机制对Fe-Mn金属橡胶能耗的贡献。研究结果为不同阻尼性能和承载能力需求下Fe-Mn金属橡胶减振元件的热处理工艺提供了设计思路和数据支撑。In order to explore the method for further improving the damping performance of metal rubber,Fe-Mn damping alloy wire was used to fabricate metal rubber which was compared against 304 stainless steel metal rubber to investigate the mechanical behavior of Fe-Mn metal rubber under static and dynamic loads under different solution heat treatment states.The results show that the energy dissipation capacity of Fe-Mn metal rubber without solution heat treatment is better than that of 304 stainless steel metal rubber under both static and dynamic loads,but the bearing capacity of Fe-Mn metal rubber is weaker than that of 304 stainless steel metal rubber.After solution heat treatment the static and dynamic stiffness of the Fe-Mn metal rubber can be significantly increased by 2.2 and 2.7 times respectively at the expense of a downgrade of the damping capacity.Different damping mechanisms and solution heat treatment effects can be observed from Fe-Mn metal rubber under the static and dynamic loads.As for static load conditions,solution heat treatment at 200℃is able to enhance the hysteresis damping capacity to reach a higher loss factor compared to the sample without solution heat treatment.However,the effect of solution heat treatment is mainly manifested in the increase of the stiffness of Fe-Mn metal rubber,which weakens the contribution of the damping mechanism to the energy dissipation of Fe-Mn metal rubber.The research results will provide design ideas and data support for heat treatment process design for Fe-Mn metal rubber according to different requirements of damping capacity and bearing capacity.

关 键 词：FE-MN合金 金属橡胶 固溶热处理 阻尼性能 微观阻尼机制 

分 类 号：TB332[一般工业技术—材料科学与工程]