熔铸法制备Al-Ti-B-RE细化剂加料方式研究
Research on Adding Method of Al-Ti-B-RE Refiner Prepared by Casting Method
任 峻1， 马 颖2
点击：3728次 下载：0次
作者单位：1. 宜宾学院 经济与管理学院，四川 宜宾 644000； 2. 兰州理工大学 有色金属新材料国家重点实验室培育基地 甘肃 兰州 730050
中文关键字：稀土；Al-Ti-B-RE；晶粒细化；加料方式
英文关键字： rareearth; Al-Ti-B-RE; grain refinement; adding method
中文摘要：采用熔铸法制备Al-Ti-B-RE中间合金细化剂，并就加料方式对合金组织及细化效果的影响进行研究。结果表明：将Ti粉、KBF4和稀土元素混合添加到铝熔体中，细化效果最理想；细化剂中起细化作用的粒子为稀土AlTiRE、TiAl3和TiB2相，稀土呈白亮色，其外形、尺寸与灰暗的TiAl3相相似，细小的白亮粒子为TiB2相。
英文摘要：The influences of adding method on microstructure and refinement effect of Al-Ti-B-RE prepared by casting were studied. The results show that the mixture of Ti powder, rare-earth element and KBF4 added in aluminum melt is an optimal method to refineing effect; the particles in the refiners which play a role in refining are AlTiRE, TiAl3 and TiB2 phases. AlTiRE and TiAl3 are similar in profile and size and the former is much brighter than the later, and TiB2 phase is in small and white.