中国激光, 2001, 28 (2): 186, 网络出版: 2006-08-10
DD2单晶合金激光表面熔凝处理的组织
Microstructure Characteristics and Microsegregation of DD2 Single Crystal by Laser Surface Remelting
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。
Abstract
The microstructure characteristics and microsegregation of DD2 single crystal have been studied under ultra-high 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, interdendritic precipitation phases remarkably suppressed and the microsegregation substantially improved.
杨森, 黄卫东, 苏云鹏, 周尧和. DD2单晶合金激光表面熔凝处理的组织[J]. 中国激光, 2001, 28(2): 186. 杨森, 黄卫东, 苏云鹏, 周尧和. Microstructure Characteristics and Microsegregation of DD2 Single Crystal by Laser Surface Remelting[J]. Chinese Journal of Lasers, 2001, 28(2): 186.
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