Effect of melt superheating treatment on the cast structure of K465 nickel-based superalloy

被引：0
作者：
PEI ZhongyeabZHAO MinghanbTIAN YanwenaLI JuntaobCHEN Xingfuband WU Jiantaob a School of Material and MetallurgyNortheastern UniversityShenyang China b High Temperature Materials Research DivisionCentral Iron and Steel Research InstituteBeijing China [110004 ,100081 ]
机构：
来源：
RareMetals | 2009年 / 28卷 / 02期
关键词：
superalloy; structure; melt superheating treatment; grain; carbide;
D O I：
暂无
中图分类号：
TG132.32 [];
学科分类号：
080502 ;
摘要：
The cast structure of a K465 nickel-based superalloy with different temperatures of melt superheating treatment was studied. It is shown that melt superheating treatment plays a significant role in the grain size and carbide morphology. With increasing melt superheating temperature (below 2023 K),the grain size increases obviously and the carbide morphology is changed from a blocky to a script-like shape. However,when the melt superheating temperature is between 2023 K and 2123 K,the grain size decreases gradually,and the morphology of the MC carbide changes back to the blocky appearance. The content of W is also influenced by melt superheating treatment.
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页码：193 / 196
页数：4
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