MICROSTRUCTURES AND MECHANICAL PROPERTIES OF DIRECTIONALLY SOLIDIFIED NiAl-Cr(Mo)-Hf(Ho) EUTECTIC ALLOY

doi:10.3724/SP.J.1037.2009.00668

IMR OpenIR

	MICROSTRUCTURES AND MECHANICAL PROPERTIES OF DIRECTIONALLY SOLIDIFIED NiAl-Cr(Mo)-Hf(Ho) EUTECTIC ALLOY
	Xiao Xuan 1; Xie Yi 2; Guo Jianting 3
通讯作者	Xiao Xuan(woshixiaoxuan@yahoo.com.cn)
	2010-06-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	46 期号:6 页码:701-707
摘要	The alloy with nominal composition of Ni-30.4Al-34Cr-4.3Mo-0.1Hf-0.05Ho (atomic fraction, %) has been directionally solidified at two withdrawal rates by liquid metal (Sn) cooling (LMC) process. Compared to the as-cast alloy, directional solidification process eliminates primary Cr(Mo) phase. With increasing withdrawal rate from 8 to 15 mm/min, the diameter of NiAl/Cr(Mo) eutectic cell decreases from 115 to 85 mu m. In addition, the intercellular spaces and disordered regions become less. In virtue of the disappearance of primary Cr(Mo) phase, the mechanical properties of directionally solidified alloys are better than those of as-cast alloy and are further improved with increasing withdrawal rate.
关键词	NiAl alloy directional solidification microstructure mechanical property
DOI	10.3724/SP.J.1037.2009.00668
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:000280030800009
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：3[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/321006/100191
专题	中国科学院金属研究所
通讯作者	Xiao Xuan
作者单位	1.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110168, Peoples R China 2.Hunan Elect Power Test & Res Inst, Changsha 410007, Hunan, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xiao Xuan,Xie Yi,Guo Jianting. MICROSTRUCTURES AND MECHANICAL PROPERTIES OF DIRECTIONALLY SOLIDIFIED NiAl-Cr(Mo)-Hf(Ho) EUTECTIC ALLOY[J]. ACTA METALLURGICA SINICA,2010,46(6):701-707.
APA	Xiao Xuan,Xie Yi,&Guo Jianting.(2010).MICROSTRUCTURES AND MECHANICAL PROPERTIES OF DIRECTIONALLY SOLIDIFIED NiAl-Cr(Mo)-Hf(Ho) EUTECTIC ALLOY.ACTA METALLURGICA SINICA,46(6),701-707.
MLA	Xiao Xuan,et al."MICROSTRUCTURES AND MECHANICAL PROPERTIES OF DIRECTIONALLY SOLIDIFIED NiAl-Cr(Mo)-Hf(Ho) EUTECTIC ALLOY".ACTA METALLURGICA SINICA 46.6(2010):701-707.