Effect of Solidifcation Rate on Grain Structure Evolution During Directional Solidifcation of a Ni-based Superalloy
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2013年第9期
论文作者：Xiaoli Zhang Yizhou Zhou Tao Jin Xiaofeng Sun Lin Liu
文章页码：879 - 883
摘 要：The effect of solidification rate on grain structure evolution during directional solidification（DS） of a Ni-based superalloy was explored.It was found that a high solidification rate led to sharper <001> texture and smaller grain size in the DS samples.One of the most important findings in this work was that such result was not in accordance with the general concept,and the sharper <001> texture was accompanied by the larger grain size.To explain the contradiction,the modeling samples with five grains were produced and the effect of solidification rate on the evolution of grain texture was illustrated based on the modeling samples.
Xiaoli Zhang1，Yizhou Zhou1，Tao Jin1，Xiaofeng Sun1，Lin Liu2
1. Institute of Metal Research, Chinese Academy of Sciences2. State Key Laboratory of Solidifcation Processing, Northwestern Polytechnical University
摘 要：The effect of solidification rate on grain structure evolution during directional solidification（DS） of a Ni-based superalloy was explored.It was found that a high solidification rate led to sharper <001> texture and smaller grain size in the DS samples.One of the most important findings in this work was that such result was not in accordance with the general concept,and the sharper <001> texture was accompanied by the larger grain size.To explain the contradiction,the modeling samples with five grains were produced and the effect of solidification rate on the evolution of grain texture was illustrated based on the modeling samples.
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