摘要
探讨了在Mg-Y-Zn合金中添加Li元素时,Li对合金的微观组织和力学性能的影响。研究发现,Li元素的添加,能够促进铸态合金18R型长周期相的形成,同时细化枝晶,而固溶处理后会改变14H型长周期相的形成方式。力学性能测试结果表明,这种14H型长周期相会提高基体的显微硬度。
The effects of Li on the microstructure and mechanical properties of Mg94Zn4Y2 alloy were investigated. The results showed that with the addition of Li, the area fraction of the long-period stacking order structure increased and the dendrite was reifned. After heat treatment, the formation of 14H phases contributed to the improvement of the mircohardness of α-Mg matrix.
出处
《中国铸造装备与技术》
CAS
2015年第3期50-52,共3页
China Foundry Machinery & Technology
基金
国家自然科学基金(No.50571073
No.51474153)
国家教育部博士点基金资助项目(20111402110004)
山西省自然科学基金(No.2009011028-3
No.2012011022-1)
