Microstructure of Al-5Ti-1B-1RE nanoribbon and its refining efficiency on as-cast A356 alloys  

作　　者：王奎 崔春翔 王倩 赵立臣 胡源 

机构地区：[1]Key Laboratory for New Type of Functional Materials in Hebei Province,Hebei University of Technology

出　　处：《Journal of Rare Earths》2013年第3期313-318,共6页稀土学报（英文版）

基　　金：Project supported by National Science and Technology Program-International Collaborative Research Project (2010DFA51920)

摘　　要：The novel A1-5Ti-IB-1RE nanoribbons were synthesized by melt-spinning. The microstructure showed that the A1-5Ti- 1B-1RE nanoribbon consisted of granular-like TiB2 and core-shell-like TiA13/Ti2A120Ce. The A1-5Ti-IB-1RE nanoribbon could give rise to the excellent refining effect on as-cast A356 alloys. The refining efficiency and formation mechanism of A1-5Ti-IB-IRE nanoribbons were investigated. In accordance with the experimental results, it could be seen that the A1-5Ti-IB-1RE nanoribbon could maintain the refining effect after 60 min of holding. Additionally, owing to the addition of A1-5Ti-IB-1RE nanoribbon, the mechanical properties of A356 alloys could be enhanced significantly.The novel A1-5Ti-IB-1RE nanoribbons were synthesized by melt-spinning. The microstructure showed that the A1-5Ti- 1B-1RE nanoribbon consisted of granular-like TiB2 and core-shell-like TiA13/Ti2A120Ce. The A1-5Ti-IB-1RE nanoribbon could give rise to the excellent refining effect on as-cast A356 alloys. The refining efficiency and formation mechanism of A1-5Ti-IB-IRE nanoribbons were investigated. In accordance with the experimental results, it could be seen that the A1-5Ti-IB-1RE nanoribbon could maintain the refining effect after 60 min of holding. Additionally, owing to the addition of A1-5Ti-IB-1RE nanoribbon, the mechanical properties of A356 alloys could be enhanced significantly.

关 键 词：MELT-SPINNING NANORIBBON refining effect rare earths 

分 类 号：TG136.1[一般工业技术—材料科学与工程]