Effect of Solidification Parameters on the Microstructure and Creep Property of a Single Crystal Ni-base Superalloy

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	Effect of Solidification Parameters on the Microstructure and Creep Property of a Single Crystal Ni-base Superalloy
	J. A. Zhang; J. G. Lu; T. Jin; X. F. Sun; Z. Q. Hu
	2010
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	26 期号:10 页码:889-894
摘要	A single crystal Ni-base superalloy was processed with withdrawal rates between 2 and 7 mm/min The as-cast microstructures, heat treatment response and creep property have been characterized as a function of the withdrawal rate As expected the primary and secondary dendrite arm spacing decreased with increasing withdrawal rate microsegregation degree and porosity distribution were also varied with different withdrawal rates The withdrawal rate of 2 mm/min resulted in a noticeable residual microsegregation even after full heat treatment The samples solidified at 7 mm/min exhibited a high density of cast porosities and this led to a dramatical decline of the creep strain 4 or 6 mm/min appeared to be the optimum withdrawal rate in the present study which resulted in a uniform microstructure and an optimum density of cast porosity
部门归属	[zhang, jian; lu, jinguo; jin, tao; sun, xiaofeng; hu, zhuangqi] chinese acad sci, inst met res, shenyang 110016, peoples r china. [zhang, jian] chinese acad sci, grad univ, beijing 100049, peoples r china.;lu, jg (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Single Crystal Superalloy Withdrawal Rate Microstructure Creep Directional Solidification
URL	查看原文
WOS记录号	WOS:000284188600005
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31707
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. A. Zhang,J. G. Lu,T. Jin,et al. Effect of Solidification Parameters on the Microstructure and Creep Property of a Single Crystal Ni-base Superalloy[J]. Journal of Materials Science & Technology,2010,26(10):889-894.
APA	J. A. Zhang,J. G. Lu,T. Jin,X. F. Sun,&Z. Q. Hu.(2010).Effect of Solidification Parameters on the Microstructure and Creep Property of a Single Crystal Ni-base Superalloy.Journal of Materials Science & Technology,26(10),889-894.
MLA	J. A. Zhang,et al."Effect of Solidification Parameters on the Microstructure and Creep Property of a Single Crystal Ni-base Superalloy".Journal of Materials Science & Technology 26.10(2010):889-894.