Effects of Al content on microstructure and stability of GH4169 nickel base alloy

IMR OpenIR

	Effects of Al content on microstructure and stability of GH4169 nickel base alloy
	Liu Fang 1,2; Sun Wenru 1; Yang Shulin 1; Li Zhan 3; Guo Shouren 1; Yang Hongcai 2; Hu Zhuangqi 1
通讯作者	Sun Wenru(wrsun@imr.ac.cn)
	2008-07-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	44 期号:7 页码:791-798
摘要	When Al contents are in the standard range required by GH4169 alloy (0.45%), gamma '' phase and gamma' phase precipitated separately in the matrix grain, and delta phase precipitated as the main precipitate along the grain boundaries. When Al content >= 1.24%, gamma ''/gamma' with compact morphology formed in the grain, delta phase decreased greatly and a large amount of Laves phase, a small amount of M7C3 carbide and sigma phase precipitated along boundaries. After aging at 680 degrees C for 1000 h, the compact morphology grew slowly, whereas the phases precipitated along the grain boundaries increased in amount and coarsened in dimension, and alpha-Cr phase appeared. This trend is more obvious with increasing A1 content, as a result, the impact toughness of the alloy is largely decreased.
关键词	Ni base alloy GH4169 Al compact morphology Laves phase M7C3 carbide sigma phase impact toughness
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000258314600005
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：21[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/321006/95648
专题	中国科学院金属研究所
通讯作者	Sun Wenru
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China 3.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110168, Peoples R China
推荐引用方式 GB/T 7714	Liu Fang,Sun Wenru,Yang Shulin,et al. Effects of Al content on microstructure and stability of GH4169 nickel base alloy[J]. ACTA METALLURGICA SINICA,2008,44(7):791-798.
APA	Liu Fang.,Sun Wenru.,Yang Shulin.,Li Zhan.,Guo Shouren.,...&Hu Zhuangqi.(2008).Effects of Al content on microstructure and stability of GH4169 nickel base alloy.ACTA METALLURGICA SINICA,44(7),791-798.
MLA	Liu Fang,et al."Effects of Al content on microstructure and stability of GH4169 nickel base alloy".ACTA METALLURGICA SINICA 44.7(2008):791-798.