一种铸造低偏析高温合金的凝固偏析  

Solidification and Segregation of a Casting and Low segregated Superalloy

作　　者：肖远松[1] 楼琅洪[2] 佟英杰[2] 朱耀宵[2] 

机构地区：[1]航天材料及工艺研究所 [2]中科院金属研究所

出　　处：《航空制造工程》1997年第1期25-27,共3页Aviation Engineering & Maintenance

摘　　要：用金相探针法研究了一种低偏析高温合金的凝固。经研究发现，合金中除了钛有轻微的正树枝状偏析外，铬、钴、钼、铝等几乎不发生树枝状偏析；但在共晶内部和前沿。The metallography microprobe method has been used to study the solidification process and segregation of a low segregated superalloy. It is found that Ti has slight positive branch segregation and Cr, Co, Mo, Al hardly have, but the solidified segregation in and in front of the eutectic is nearly the same as the common superalloy.

关 键 词：金相探针法 低偏析 凝固 高温合金 

分 类 号：TG132.32[一般工业技术—材料科学与工程] TG111.4[金属学及工艺—合金]