Elevated temperature mechanical properties of a directionally solidified NiAl/Cr(Mo)-Hf alloy

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	Elevated temperature mechanical properties of a directionally solidified NiAl/Cr(Mo)-Hf alloy
	Xu, CM ; Guo, JT ; Xie, XS
通讯作者	Xu, CM(cmxu@imr.ac.cn)
	2005
发表期刊	ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4
ISSN	1013-9826
卷号	297-300 页码:1477-1481
摘要	The microstructure of directionally solidified (DS) NiAl-28Cr-5Mo-1Hf eutectic alloy was investigated by SEM and TEM. The eutectic alloy is composed of NiAl matrix, Cr (Mo) phase and a small amount of Heusler phase. Tensile testing of this alloy was performed from room temperature to 1373K. The brittle-to-ductile transition temperature (BDTT) is dependent on strain rate, with two orders of increase on strain rate resulting in a 100K increase in transition temperature. The observation of fracture surface showed that at temperature above BDTT, the fractograph changes from NiAl cleavage and debonding along NiAl/Cr(Mo) interface boundary to ductile in nature.
关键词	NiAl/Cr(Mo)-Hf alloy microstructure brittle-to-ductile transition temperature (BDTT) fracture morphology
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Mechanics
WOS类目	Materials Science, Ceramics ; Materials Science, Multidisciplinary ; Mechanics ; Materials Science, Characterization & Testing ; Materials Science, Composites
WOS记录号	WOS:000233131202007
出版者	TRANS TECH PUBLICATIONS LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/83883
专题	中国科学院金属研究所
通讯作者	Xu, CM
作者单位	1.Beijing Univ Sci & Technol, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Xu, CM,Guo, JT,Xie, XS. Elevated temperature mechanical properties of a directionally solidified NiAl/Cr(Mo)-Hf alloy[J]. ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4,2005,297-300:1477-1481.
APA	Xu, CM,Guo, JT,&Xie, XS.(2005).Elevated temperature mechanical properties of a directionally solidified NiAl/Cr(Mo)-Hf alloy.ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4,297-300,1477-1481.
MLA	Xu, CM,et al."Elevated temperature mechanical properties of a directionally solidified NiAl/Cr(Mo)-Hf alloy".ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4 297-300(2005):1477-1481.