RECRYSTALLIZATION OF A NICKEL-BASE SINGLE CRYSTAL SUPERALLOY UNDER COMPRESSION

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	RECRYSTALLIZATION OF A NICKEL-BASE SINGLE CRYSTAL SUPERALLOY UNDER COMPRESSION
	J. Meng; T. Jin; X. F. Sun; Z. Q. Hu
	2010
发表期刊	International Journal of Modern Physics B
ISSN	0217-9792
卷号	24 期号:15-16 页码:2880-2885
摘要	Recrystallization behavior of a nickel-base single crystal superalloy cold-deformed by compression has been investigated. The effects of plastic strain, annealing temperature and annealing time have been studied, and recrystallization diagram has been obtained. It has been found that a very strong dependence upon temperature is evident. For the single crystal superalloy with 4.5% strain, full recrystallization has been observed when annealing at 1300 degrees C for 1h, surface recrystallization at 1250 degrees C for 1h, cellular recrystallization at 1150 degrees C for 1h and no recrystallization at 1100 degrees C for 1h. With the drop of temperature, the volume fraction of gamma' phase increases, which incrementally restricts recrystallized boundary migration. With the increasing of annealing time or strain, the sensitivity of recrystallization increases. Recrystallization tendency of standard-heat-treated superalloy is weaker than that of as-cast single crystal superalloy, because standard heat treatment reduces the microsegregation, lowers the eutectic amount and forms homogeneous gamma' phase distribution, which decrease preferential nucleation site of recrystallized grain and increase the resistance of boundary migration of recrystallization.
部门归属	[meng, j.] univ sci & technol, state key lab adv met & mat, beijing, peoples r china. [meng, j.; jin, t.; sun, x. f.; hu, z. q.] chinese acad sci, inst met res, dept superalloy, shenyang 110016, peoples r china.;jin, t (reprint author), univ sci & technol, state key lab adv met & mat, beijing, peoples r china;jmeng@imr.ac.cn tjin@imr.ac.cn
关键词	Nickel-base Single Crystal Superalloy Recrystallization Compression Annealing
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WOS记录号	WOS:000282197000109
引用统计	被引频次：4[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/321006/31382
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Meng,T. Jin,X. F. Sun,et al. RECRYSTALLIZATION OF A NICKEL-BASE SINGLE CRYSTAL SUPERALLOY UNDER COMPRESSION[J]. International Journal of Modern Physics B,2010,24(15-16):2880-2885.
APA	J. Meng,T. Jin,X. F. Sun,&Z. Q. Hu.(2010).RECRYSTALLIZATION OF A NICKEL-BASE SINGLE CRYSTAL SUPERALLOY UNDER COMPRESSION.International Journal of Modern Physics B,24(15-16),2880-2885.
MLA	J. Meng,et al."RECRYSTALLIZATION OF A NICKEL-BASE SINGLE CRYSTAL SUPERALLOY UNDER COMPRESSION".International Journal of Modern Physics B 24.15-16(2010):2880-2885.