摘要
讨论了Ti2AlNb基合金的熔炼特点,概括介绍了真空水冷铜坩埚感应凝壳熔炼的设备结构原理和工艺技术,结合Ti2AlNb基合金的熔炼实践,研究了合金元素的加入形式、熔炼室真空度对合金铸锭的均匀性以及合金中Al挥发烧损的影响规律。结果表明:采用水冷铜坩埚真空感应凝壳熔炼Ti2AlNb基合金,合金铸锭成分均匀性很好,随着熔炼工艺的不同,Al挥发烧损在5％～10％（质量分数）之间。
Melting characteristics of Ti2AlNb-based alloy are discussed.Structural principle of ISM equipment and melting techniques are introduced. Effects of alloying elements mix methods and vacuity in chamber on uniformity and alu-minum volatilization loss of the ingot are investigated. Experimental results show that ingot made of Ti2AlNb-based alloy has good uniformity by ISM, and the volatilization weight loss rate of aluminum varies from 5% to 10% with different ISM processes.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2002年第2期47-50,共4页
Aerospace Materials & Technology
基金
国家自然科学基金50 071 011
国家重点实验室基金资助项目
