铸造技术2013，Vol.34Issue(4)：409-412,4.
Er对Al-20％Si微观组织及性能的影响
Effect of Er Content on Microstructure and Mechanical Properties of Al-20％Si Alloy
兰晔峰 1樊璐 1李庆林 1李鹏飞 1冯菁菁2
作者信息
- 1. 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,甘肃兰州730050
- 2. 渤海船舶职业学院材料工程系,辽宁葫芦岛125005
- 折叠
摘要
Abstract
Through adding rare earth elements Er into hypereutectic Al-Si alloy to spheroidize and granulate primary silicon and eutectic silicon,the effect of different Er content on microstructure and mechanical properties of hypereutectic Al-20％Si alloy was studied.The results show that the addition of rare earth element Er makes primary Si with the petal-like or large blocky passivation spheroidize,and the flakiness eutectic Si refine into coral-like and wormlike.When the content of Er is 1％,the microstructure of the alloy is smallest,the primary silicon is smallest in size and tensile strength and percentage elongation is highest.关键词
铝硅合金/稀土元素Er/微观组织/拉伸性能Key words
Al-Si alloy/ rare earth element Er/ microstructure/ tensile properties分类
矿业与冶金引用本文复制引用
兰晔峰,樊璐,李庆林,李鹏飞,冯菁菁..Er对Al-20％Si微观组织及性能的影响[J].铸造技术,2013,34(4):409-412,4.
