摘要
研究了原料与Ａｌ５Ｔｉ１Ｂ 中间合金组织形态之间的联系， 结果表明：在一定熔炼工艺条件下，用纯Ｔｉ 颗粒法可制备出含有颗粒状ＴｉＡｌ３（３ ～１５ μｍ） 和颗粒状ＴｉＢ２（０ ．１ ～１ ．２ μｍ） 的Ａｌ５Ｔｉ１Ｂ 中间合金； 用氟盐法可以制备出含有块状与片状形态ＴｉＡｌ３（１０ ～１００ μｍ） 和条状与颗粒状ＴｉＢ２（０ ．２ ～３ ．０ μｍ）的Ａｌ５Ｔｉ１Ｂ 中间合金。理论分析认为：原料对Ａｌ５Ｔｉ１Ｂ 中间合金化合物的影响是通过改变化学反应体系和熔体结构状态来实现的。
The relationship between raw materials and the intermetallic compounds in Al5Ti1B master alloys has been investigated. Experimental results show that Al5Ti1B master alloy containing granular TiAl 3 (3～15 μm)and TiB 2 particles(0.1～1.2 μm)can be obtained by using of pure Ti particles and compounds containing B; block and flake like TiAl 3 (10～100 μm)and bar like TiB 2(0.2～3.0 μm)can be obtained by using of fluoride salt method under usual casting condition(melted at 850 ℃, holding 45 min and pouring into permanent mould). Theoretical analyses show that different raw materials can have different chemical reaction processes and melt structures, then have different structures of Al5Ti1B master alloys.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1999年第4期776-779,共4页
The Chinese Journal of Nonferrous Metals
基金
山东省优秀中青年科学家科研奖励基金!资助项目No:9814
