【作者】 贺毅； 张喜燕； 易锦；

【Author】 He Yi Zhang Xiyan Yi Jin (Southwest Jiaotong University,Chengdu,610031,China)

【机构】 西南交通大学材料系；

【摘要】 本文研究了固溶时效处理对经Ti、RE等微量元素变质处理的Zn-Al27铸造合金阻尼性能和组织的影响。研究结果发现,固溶时效处理有效地提高了合金阻尼性能,究其原因在于,固溶时效处理控制合金固态相变过程,使合金组织由铸态时的粗条纹片状非平衡共晶组织(η+β)断裂、球化变为微细粒状的共析组织(α+η),从而使得合金的阻尼性能提高。特别是在最佳固溶处理工艺下合金阻尼性能大幅度提高。更多还原

【Abstract】 The paper studies the influence of solid solution and ageing on the damping property and the microstructure of the Zn-Al27 as-cast alloy,which is modified by adding trace elements such as Ti,RE.The research results show that,solution-ageing treatment may evidently enhance the damping property of the Zn-Al alloy.Because solid solution and ageing treatment may control the course of solid phase transformation and make the microstructure of the alloy change from as-cast lamellae structure to particle structure,and the motion of the particle structure is better than lamellae structure.Specially,the damping property of the alloy specimen is highly improved at the best solid solution and ageing process.更多还原