Effects of platinum group metals addition on the precipitation of topologically close-packed phase in Ni-base single crystal superalloys

IMR OpenIR

	Effects of platinum group metals addition on the precipitation of topologically close-packed phase in Ni-base single crystal superalloys
	Gao, Shuang; Zhou, Yizhou; Li, Cai-Fu; Liu, Zhi-Quan; Jin, Tao; yzzhou@imr.ac.cn; zqliu@imr.ac.cn
	2016
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	671 页码:458-464
摘要	Precipitation of topologically close-packed (TCP) phase in Ni-base single crystal superalloys with additions of platinum group metals (PGMs) was investigated by in situ transmission electron microscopy (TEM). Pt, Ir and Ru additions are all helpful to suppress the precipitation of TCP phase, among which Ru has the largest efficiency while Pt has the least one. Comparing with the TCP precipitation in non-PGMs alloys, addition of Ru mainly retards the nucleation rate of TCP phase, but Pt and Ir mainly reduces the growth rate of TCP precipitates. Elemental partitioning investigation reveals that Pt and Ir prefer partitioning to the surrounding gamma matrix rather than in the precipitated mu phase, and Ru distributes homogenously in both gamma matrix and mu phase. Cr distribution in precipitated mu phase is higher in Pt/Ir-containing alloys than in Ru-containing alloy, which is supposed to be related to the different metallic bonding energy of Cr-Pt, Cr-Ir and Cr-Ru. (C) 2016 Elsevier B.V. All rights reserved.
部门归属	[gao, shuang ; zhou, yizhou ; li, cai-fu ; liu, zhi-quan ; jin, tao] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Platinum Group Metals Ni-base Single Crystal Superalloy Topologically Close-packed Phase Precipitation In-situ Tem
资助者	Natural Science Foundation of China [51271186]
收录类别	sci
语种	英语
WOS记录号	WOS:000371767900064
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/321006/74789
专题	中国科学院金属研究所
通讯作者	yzzhou@imr.ac.cn; zqliu@imr.ac.cn
推荐引用方式 GB/T 7714	Gao, Shuang,Zhou, Yizhou,Li, Cai-Fu,et al. Effects of platinum group metals addition on the precipitation of topologically close-packed phase in Ni-base single crystal superalloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,671:458-464.
APA	Gao, Shuang.,Zhou, Yizhou.,Li, Cai-Fu.,Liu, Zhi-Quan.,Jin, Tao.,...&zqliu@imr.ac.cn.(2016).Effects of platinum group metals addition on the precipitation of topologically close-packed phase in Ni-base single crystal superalloys.JOURNAL OF ALLOYS AND COMPOUNDS,671,458-464.
MLA	Gao, Shuang,et al."Effects of platinum group metals addition on the precipitation of topologically close-packed phase in Ni-base single crystal superalloys".JOURNAL OF ALLOYS AND COMPOUNDS 671(2016):458-464.