Creep characteristic of NiAl-9Mo eutectic alloy

IMR OpenIR

	Creep characteristic of NiAl-9Mo eutectic alloy
	Ren, WL ; Guo, JT ; Li, GS ; Wu, JS
通讯作者	Ren, WL(wlren@sjtu.edu.cn)
	2004-05-01
发表期刊	MATERIALS TRANSACTIONS
ISSN	1345-9678
卷号	45 期号:5 页码:1731-1737
摘要	The creep behavior of NiAl-9Mo eutectic alloy has been studied in an effort to understand the characteristic that the alloy exhibits of the low stress exponent of 4.75 and the high apparent activation energy of 410 kJ/mol during the steady-state creep of under the test conditions. The material exhibits threshold behavior with a threshold stress of 17.9 MPa. TEM observation reveals that the creep deformation is mainly governed by dislocation climb in NiAl matrix phase. Large recoverable strain is observed after unloading under the transient creep and increases with the increase of stress or temperature. It exhibits an activation energy 232 kJ/mol, suggesting the processes is controlled by the flow behavior of the matrix phase. The apparent creep activation energy under constant stress is a combination of the creep flow activation energy of the matrix and the activation energy for the damage process at the phase interface.
关键词	NiAl-based eutectic alloy creep threshold stress transient creep
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000221863900058
出版者	JAPAN INST METALS
引用统计	被引频次：6[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/321006/118660
专题	中国科学院金属研究所
通讯作者	Ren, WL
作者单位	1.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Key Lab High Temp Mat & Tests, Minist Educ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Dept Superalloys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ren, WL,Guo, JT,Li, GS,et al. Creep characteristic of NiAl-9Mo eutectic alloy[J]. MATERIALS TRANSACTIONS,2004,45(5):1731-1737.
APA	Ren, WL,Guo, JT,Li, GS,&Wu, JS.(2004).Creep characteristic of NiAl-9Mo eutectic alloy.MATERIALS TRANSACTIONS,45(5),1731-1737.
MLA	Ren, WL,et al."Creep characteristic of NiAl-9Mo eutectic alloy".MATERIALS TRANSACTIONS 45.5(2004):1731-1737.