航空材料学报2012，Vol.32Issue(6)：50-55,6.DOI:10.3969/j.issn.1005-5053.2012.6.007
Hf对IC10高温合金凝固特性的影响
Effect of Hf on Solidification Characterization of IC10 Superalloy
王艳丽 1赵希宏 1范映伟 2黄朝晖 1王祺2
作者信息
- 1. 北京航空材料研究院先进高温结构材料重点实验室,北京100095
- 2. 北京航空材料研究院,北京100095
- 折叠
摘要
Abstract
The effect of hafnium on the solidification characterization of IC10 superalloy was studied by the method of DSC and isothermal solidification experiment. The solidified structure at different temperature and solidification sequence were obtained. It is found that with the increasing hafnium content,temperatures of liquidus and solidus decrease, in the same time, the solidification range of the alloy and the temperature of eutectic increase . Hafnium narrowed down the temperature range between the lost of interdendritic capillary feeding action and solidus, as well as decreased the liquid content necessary for linking the interdendritic pools in the late solidification. The Hf-rich melts in interdendritic zone had superior fluidity. So the increasing of hafnium content increased the castability of IC10 superalloy.关键词
高温合金/定向凝固/Hf/微观组织Key words
superalloy/ directional solidification/ Hf/ microstructure分类
矿业与冶金引用本文复制引用
王艳丽,赵希宏,范映伟,黄朝晖,王祺..Hf对IC10高温合金凝固特性的影响[J].航空材料学报,2012,32(6):50-55,6.
