电解法和铝热法Al-Ti-C中间合金的显微组织研究  

Study on Al-Ti-C Master Alloy Made by Electrolysis Process

作　　者：陈一胜[1] 王秀红[1] 聂华平[1] 

机构地区：[1]江西理工大学材料与化学工程学院,江西赣州341000

出　　处：《铸造技术》2006年第5期481-485,共5页Foundry Technology

摘　　要：由于C元素与铝熔体难浸润,很难形成合金化的A1-Ti-C。提出了电解法制取A1-Ti-C中间合金的新工艺,旨在探索一种性能稳定、成本较低的Al-Ti-C合金化工艺。结果表明,电解法制备的中间合金C的吸收率明显提高,是相同工艺条件下铝热还原法的1.2倍,解决了C、Ti与铝熔体浸润难的问题;同时在合金中形成了数量更多、分布更均匀的TiC颗粒,明显改善了细化剂的细化效果。It is difficult to prepare Al-Ti-C master alloy because of the poor wettability of carbon in aluminum melts. A novel method, electrolysis process, for producing Al-Ti-C master alloy has been developed. This process has advantages of stable production and low cost. Compared to alumino- thermic process, the new technology has high carbon recovery, 1.2 times higher than the alumino- thermic method under the same conditions. The difficulty of carbon and aluminum wetting and mixing with aluminum melts has been solved. The master alloy has much more and more uniformly distributed carbon and titanium particles which significantly improve refinement effect of the master alloy.

关 键 词：电解 中间合金 晶粒细化 Al—Ti—C 

分 类 号：TG113.1[金属学及工艺—物理冶金]