摘要
利用激光快速熔凝技术对DD2单晶合金在超高温度梯度和快速凝固条件下的组织形态和元素的微观偏析行为进行了研究。实验结果表明激光重熔后微观组织较铸态组织显著细化 ,枝晶间析出相被抑制 ,合金元素的微观偏析行为大为改善。
The microstructure characteristics and microsegregation of DD2 single crystal have been studied under ultrahigh temperature gradient and rapid solidification conditions by laser rapid remelting. The experimental results show that the microstructure has been greatly refined after laser rapid remelting, the interdendritic precipitation phases have been remarkably suppressed and the microsegregation has been substantially improved.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2001年第2期186-188,共3页
Chinese Journal of Lasers
基金
国家自然科学基金! (5 97710 5 4)
