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合金元素对高阻尼铝基合金的影响
Effect of alloying element on high damping Al-based alloy
【摘要】 通过复合添加,研究了Mg、Cu、Zr、Ti和稀土对Al-Zn阻尼合金显微组织、力学性能及阻尼性能的影响;研究表明,随着合金元素的加入,合金的晶粒组织变得细小而均匀,提高合金晶界界面数量及可动性,提高Al-Zn合金阻尼性能的同时,使其抗拉强度和硬度均有所提高。其中,成分最优化合金的性能为σb=285.6MPa,HB=118.3,Q-1=2.28×10-2。
【Abstract】 The effects of Mg,Cu,Zr,Ti and rare earth on the microstructures,mechanical properties and damping capacity have been studied.The result shows that the microstructure of alloy changed from large crystals to fine crystals with regular distribution.The number and the moving property of the grain boundaries of the alloy has been increased.And improve the damping properties of the alloys,its tensile strength and hardness be increased at the same time.The optimal properties are σb=285.6MPa,HB=118.3,and Q-1=2.28×10-2.
【关键词】 高阻尼铝基合金;
显微组织;
力学性能;
阻尼性能;
【Key words】 high damping Al-based alloy; microstructure; mechanical properties; damping capacity;
【Key words】 high damping Al-based alloy; microstructure; mechanical properties; damping capacity;
【基金】 贵州省科学技术基金项目(黔科合J字(2007)2178号)
- 【文献出处】 轻金属 ,Light Metals , 编辑部邮箱 ,2009年01期
- 【分类号】TG146.21
- 【被引频次】1
- 【下载频次】177