预变形量对CuZnAlZr合金阻尼性能的影响  

Effect of pre-deformation on damping properties of Cu69.17Zn27.04Al3.62Zr0.17 alloy

作　　者：李宁[1] 龚勤慧[1] 文玉华[1] 黄姝珂[1] 黄勇[1] 丁胜[1] 

机构地区：[1]四川大学制造科学与工程学院,四川成都610065

出　　处：《金属热处理》2008年第6期32-34,共3页Heat Treatment of Metals

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

摘　　要：通过对Cu69·17Zn27·04Al3·62Zr0·17减振合金阻尼机制的研究,分析了预变形处理对该合金阻尼性能的影响。结果表明,在预变形处理时,该合金发生了应力诱发马氏体转变。预变形量在0-2%区间,随预变形量增大,合金的阻尼性能增加;在预变形量为2%时,合金的阻尼性能达到最大值;但随预变形量的进一步增大,合金的阻尼性能开始下降。The damping mechanism of Cu69.17Zn27.04Al3.62Zr0. 17 alloy was studied and the effects of pre-deformation treatment on its damping property were also investigated. The results show that stress-induced martensite transformation of Cu69. 17Zn27.04Al3.62Zr0. 17 alloy occurs during pre-deformation treatment. Within the pre-deformation ratio of 0 to 2 %, the higher the pre-deformation is, the higher the damping property is. The internal friction reaches the highest value when the pre-deformation increases to 2 % , then the damping property decreases with the increasing of pre-deformation.

关 键 词：CU基合金 应力诱发马氏体转变 阻尼性能 内耗 

分 类 号：TG135.7[一般工业技术—材料科学与工程] TG139.6[金属学及工艺—合金]