Modes of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base Superalloys

IMR OpenIR

	Modes of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base Superalloys
其他题名	Modes of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base Superalloys
	X. B. Meng; Q. Lu; J. G. Li; T. Jin; X. F. Sun; J. Zhang; Z. Q. Chen; Y. H. Wang; Z. Q. Hu
	2012
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	28 期号:3 页码:214-220
摘要	The modes of grain selection in spiral selector were investigated by both a ProCAST simulation and experimental confirmation. The results show that the efficiency of grain selection in starter block is associated with the geometry shape. At the early stage of grain selection, the optimization of grain orientation is dominated by competitive grain growth, but the optimization of grain orientation in starter block is gradually dominated by geometry shape at the later stage of grain selection. Besides, the spiral part could also optimize the orientation of the selected single crystal when the initial angle is large enough, and the single crystal selection in spiral parts with different pitch lengths and initial angles is dominated by different modes. The simulation results agree well with experimental ones.
其他摘要	The modes of grain selection in spiral selector were investigated by both a ProCAST simulation and experimental confirmation. The results show that the efficiency of grain selection in starter block is associated with the geometry shape. At the early stage of grain selection, the optimization of grain orientation is dominated by competitive grain growth, but the optimization of grain orientation in starter block is gradually dominated by geometry shape at the later stage of grain selection. Besides, the spiral part could also optimize the orientation of the selected single crystal when the initial angle is large enough, and the single crystal selection in spiral parts with different pitch lengths and initial angles is dominated by different modes. The simulation results agree well with experimental ones.
部门归属	[meng, xiangbin; lu, qi; li, jinguo; jin, tao; sun, xiaofeng; hu, zhuangqi] chinese acad sci, inst met res, shenyang 110016, peoples r china. [meng, xiangbin; lu, qi] chinese acad sci, grad sch, beijing 100049, peoples r china. [zhang, jun] nw polytech univ, state key lab solidificat proc, xian 710072, peoples r china. [chen, zhongqiang; wang, yanhui] shenyang liming aeroengine grp corp ltd, avic, shenyang 110043, peoples r china.;li, jg (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china.;jgli@imr.ac.cn
关键词	Ni-base Single Crystal Superalloys Competitive Grain Growth Geometry Shape Directional Solidification Spiral Selector Crystal Casting Process Growth Prediction
URL	查看原文
收录类别	CSCD
语种	英语
资助项目	[National Basic Research Program (973 Program) of China] ; [National Natural Science Foundation of China (NSFC)] ; [State Key Laboratory of Solidification Processing in NWPU]
CSCD记录号	CSCD:4514399
引用统计	被引频次：6[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60160
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. B. Meng,Q. Lu,J. G. Li,et al. Modes of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base Superalloys[J]. Journal of Materials Science & Technology,2012,28(3):214-220.
APA	X. B. Meng.,Q. Lu.,J. G. Li.,T. Jin.,X. F. Sun.,...&Z. Q. Hu.(2012).Modes of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base Superalloys.Journal of Materials Science & Technology,28(3),214-220.
MLA	X. B. Meng,et al."Modes of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base Superalloys".Journal of Materials Science & Technology 28.3(2012):214-220.