Microstructure and mechanical properties of NiAl(Ti)-Cr(Mo) eutectic alloy

IMR OpenIR

	Microstructure and mechanical properties of NiAl(Ti)-Cr(Mo) eutectic alloy
	Xiao Xuan ; Guo Jianting ; Yu Haipeng
通讯作者	Guo Jianting(jtguo@imr.ac.cn)
	2006-10-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	42 期号:10 页码:1031-1035
摘要	The as-cast Ni-32Al-28Cr-3Mo-4Ti (atom fraction, %) eutectic alloy consists of beta-NiAl and alpha-Cr(Mo) eutectic, as well as a small amount of primary beta-NiAl and Ni2AlTi. Its compressive yield strength surpassed the Dy-doped NiAl-Cr(Mo) eutectic alloy, and is comparable to NiAl-28-Cr5Mo-1Hf eutectic alloy, indicating the addition of Ti is benefit to strengthening the NiAl-Cr(Mo) eutectic alloy. Both of the creep rupture life and minimum creep rate at 1000 degrees C vs applied stress fit linear dual-logarithmic relationship. The relationship between creep rupture life and minimum creep rate follows the modified Monkman-Grant equation: t(f) . ((epsilon) over dot(min))(0.71) = 0.51. The fracture mechanism at room temperature is cleavage fracture of NiAl and Cr(Mo) eutectic phases as well as separation of NiAl/Cr(Mo) interface, while the formation and aggregation of microvoids on eutectic boundaries leads to creep fracture.
关键词	NiAl eutectic alloy Ti addition microstructure mechanical property
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:000241783700005
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：7[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/321006/87805
专题	中国科学院金属研究所
通讯作者	Guo Jianting
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Shenyang Polytech Univ, Sch Mat Sci & Engn, Shenyang 110023, Peoples R China
推荐引用方式 GB/T 7714	Xiao Xuan,Guo Jianting,Yu Haipeng. Microstructure and mechanical properties of NiAl(Ti)-Cr(Mo) eutectic alloy[J]. ACTA METALLURGICA SINICA,2006,42(10):1031-1035.
APA	Xiao Xuan,Guo Jianting,&Yu Haipeng.(2006).Microstructure and mechanical properties of NiAl(Ti)-Cr(Mo) eutectic alloy.ACTA METALLURGICA SINICA,42(10),1031-1035.
MLA	Xiao Xuan,et al."Microstructure and mechanical properties of NiAl(Ti)-Cr(Mo) eutectic alloy".ACTA METALLURGICA SINICA 42.10(2006):1031-1035.