摘要
研究了Mg含量与固溶时效处理对Al-5.3Cu-x Mg-0.6Ag合金组织与性能的影响。研究发现:Al-5.3Cu-x Mg-0.6Ag合金经固溶时效处理后,组织中存在三种强化相,时效时间不同,三种强化相的种类、数量、尺寸及分布情况均不同;铸态Al-5.3Cu-x Mg-0.6Ag合金的硬度随着Mg含量的增加而逐渐增大;Mg含量不同时,Al-5.3Cu-x Mg-0.6Ag合金硬度值随时效时间的增加变化趋势不同;Mg含量越高,合金达到峰时效的时间越短;加入不同含量的Mg,对Al-5.3Cu-x Mg-0.6Ag合金的强化效果不同。
Mg content has an important impact on the microstructure and mechanical properties of Al-Cu-Mg-Ag alloy. In this paper, the effects of solution-aging treatment and Mg addition on the microstructures and mechanical properties of Al-5.3Cu-x Mg-0.6Ag alloys were studied by the experimental method. Three kinds of strengthening phases exist in the microstructures of Al-5.3Cu-x Mg-0.6Ag alloys after solution-aging treatment. With different aging time,the kind, quantity, size and distribution of three strengthening phases are different. Mg content has an important impact on as-cast microstructures of Al-Cu-Mg-Ag alloys. With the increase of Mg content, the hardness of as-cast Al-5.3Cu-x Mg-0.6Ag alloys increases. When Mg content is different, with the increase of aging time, the change trend of alloy hardness is different. The higher Mg content is, the shorter the time to alloy hardness peak is. The difference of Mg content has different strengthening effect on Al-5.3Cu-x Mg-0.6Ag alloys.
出处
《辽宁工业大学学报（自然科学版）》
2016年第5期330-333,共4页
Journal of Liaoning University of Technology(Natural Science Edition)
基金
辽宁工业大学大学生创新创业训练计划项目(201501036)
