Al-5.22Ti-1.65B的金相组织对ZL101A铸造铝合金的影响  

Effect of Microstructure of Al-5.22Ti-1.65B on ZL101A Cast Aluminum Alloy

作　　者：闫洪 安中庆 YAN Hong;AN Zhongqing(Material Research Institute of Kunming Metaaurgical Research Institute Co.Ltd.,Kunming 650031,China)

机构地区：[1]昆明冶金研究院有限公司,云南昆明650031

出　　处：《工业加热》2020年第11期8-11,共4页Industrial Heating

基　　金：云南省社会发展科技计划-科研院所技术开发研究专项(2011CFO09)。

摘　　要：分析了Al-5.22Ti-1.65B中间合金的金相组织对ZL101A铸造铝合金的影响,结果表明:在Al-5.22Ti-1.65B中间合金的金相组织中,Ti Al3相呈块状,分布于α-Al基体上,Ti B2颗粒为球状,处于Ti Al3相之间。经过Ti Al3相和Ti B2颗粒分布均匀的铝钛硼中间合金处理后,减少了树枝状α-Al相的形成,共晶硅的分散性更好,使ZL101A铸造铝合金的组织变得更均匀。The influence of microstructure of Al-5. 22 Ti-1. 65 B intermediate alloy on ZL101 A cast aluminum alloy was analyzed. The results show that: in the metallographic structure of Al-5. 22 Ti-1. 65 B middle alloy,Ti Al3 phase is massive and distributed on the α-Al matrix. The shape of Ti B2 particle is spherical,which is between Ti Al3 phase. After the treatment of Al-5. 22 Ti-1. 65 B intermediate alloy with well-distri buted particle in Ti Al3 phase and Ti B2,the formation of dendriteα-Al phase is reduced,the dispersion of eutectic silicon is bettered,and the microstructure of ZL101 A cast aluminum alloy becomes more uniform.

关 键 词：Al-5.22Ti-1.65B中间合金 TiAl3相 TIB2颗粒 组织均匀性 ZL101A铸造铝合金 

分 类 号：TU395[建筑科学—结构工程]