铸造技术2018，Vol.39Issue(6)：1168-1172,5.DOI:10.16410/j.issn1000-8365.2018.06.006
单晶高温合金定向凝固螺旋选晶器数值模拟与实验研究
Numerical Simulation and Experimental Study on Spiral Grain Selector in Directional Solidification of Single Crystal Superalloy
摘要
Abstract
The effect of temperature field on the grain growth of starter block of the spiral grain selector was numerical simulated by Pro CAST software.On the basis of simulation and experiment, the variation of grain orientation, density and the size of the starter block were investigated.The results show that with the increase of starter block height, the orientation of the grains is optimized, and the grain density decreases and the grain size increases, which provides theoretical support for the height design of the starter block.It can explain the evolution of grain competition growth of the spiral grain selector in the macroscopic and microcosmic way, which provide the theoretical basis for actual production.关键词
螺旋选晶器/铸造模拟/单晶Key words
spiral grain selector/casting simulation/single crystal分类
矿业与冶金引用本文复制引用
贾志宏,刘建伟,仇盛,马奥林,赵玉涛..单晶高温合金定向凝固螺旋选晶器数值模拟与实验研究[J].铸造技术,2018,39(6):1168-1172,5.基金项目
江苏省科技支撑(工业)项目(BE2014007-2) （工业）
江苏省战略性新兴产业发展专项资助项目(苏发改高技发[2013]2027) （苏发改高技发[2013]2027）
