Effects of Al and Nb Content on Microstructure and Properties of GH706 Alloy

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	Effects of Al and Nb Content on Microstructure and Properties of GH706 Alloy
	Xin Xin 1,2; Sun Wenru ; Duan Zhongyuan 3; Qi Feng ; Zhang Weihong ; Liu Fang ; Yang Hongcai 2; Hu Zhuangqi
刊名	RARE METAL MATERIALS AND ENGINEERING
	2011-11-01
卷号	40 期号:11 页码:1946-1950
关键词	GH706 alloy microstructure mechanical properties precipitation behavior
ISSN号	1002-185X
通讯作者	Xin Xin(lnsyxx@126.com)
英文摘要	The effects of increasing Al and decreasing Nb on microstructure and mechanical properties of GH706 alloy were studied. With increasing Al from 0.35% to 1.26% and decreasing Nb from 2.88% to 1.98%, the precipitation of gamma ''-Ni3Nb phase is constrained, while the formation of gamma'-Ni3Al phase is promoted. As a result, the tensile strength at room temperature is decreased, but the impact energy is improved. However, such a modification of Al and Nb constrains the precipitation of intergranular eta-Ni-3(Ti,Nb) phase, and enhances the precipitation of Laves phase rich in Nb and Cr2Nb phase rich in Nb and Cr, which decreases the grain boundary cohesion and deteriorates the stress rupture properties at 650 degrees C and 690 MPa.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000303782000014
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/104140]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xin Xin
作者单位	1.Chinese Acad Sci, Sch Met & Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Shenyang 110004, Peoples R China 3.Guizhou Anda Aviat Forging Co Ltd, Anshun 561005, Peoples R China
推荐引用方式 GB/T 7714	Xin Xin,Sun Wenru,Duan Zhongyuan,et al. Effects of Al and Nb Content on Microstructure and Properties of GH706 Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2011,40(11):1946-1950.
APA	Xin Xin.,Sun Wenru.,Duan Zhongyuan.,Qi Feng.,Zhang Weihong.,...&Hu Zhuangqi.(2011).Effects of Al and Nb Content on Microstructure and Properties of GH706 Alloy.RARE METAL MATERIALS AND ENGINEERING,40(11),1946-1950.
MLA	Xin Xin,et al."Effects of Al and Nb Content on Microstructure and Properties of GH706 Alloy".RARE METAL MATERIALS AND ENGINEERING 40.11(2011):1946-1950.