摘要
研究了合金元素Sb对Mg-8Al-1Zn-1Si合金组织和性能的影响。结果表明：加入少量（0．2％-0．6％）Sb时．a—Mg基体和粗大的汉字状Mg2Si相颗粒有所细化，力学性能逐渐提高；当Sb达到0．8％时，MgzSi颗粒全部转变为块状和短棒状，此时室温和150℃下的力学性能都达到最佳；当Sb含量超过0．8％后，合金中的Mg2Si义变为粗大的汉字状，力学性能下降。
The effect of Sb modification on the microstructure and properties of Mg-8Al-1Zn- 1 Si alloy were investigated. The results show that a-Mg matrix and Chinese script shaped Mg2Si phases are refined in some extent by adding 0.2%-0.6% Sb elements to Mg-8Al-1Zn-ISi alloy, and the mechanical properties are improved gradually. When the content of Sb is 0.8%, all of Mg2Si phases change into block and short rod shapes, the room temperature and elevated temperature mechanical properties of the alloy reach the maximum. Above the content of 0.8% Sb, the Mg2Si phases change into large Chinese script shaped again, and the mechanical properties reduce.
出处
《铸造技术》
CAS
北大核心
2013年第1期36-39,共4页
Foundry Technology
基金
陕西省自然科学基金项目(2010JM6009)
陕西省教育厅科研计划项目(2010JK470)
