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	Experiments, characterizations and analysis of a U/sub 3/Si /sub 2/-Al dispersion fuel plate with sandwich structure
	Xi-Shu Wang ; Yong Xu
	2010-05-07 ; 2010-05-07
关键词	Experimental/ aluminium fatigue cracks fracture nucleation scanning electron microscopy uranium compounds/ research reactors mechanical properties dispersion fuel plate fatigue cracks sandwich structure scanning electron microscopy nucleation mechanism fracture modes reliability reactor fuel elements fatigue properties in situ SEM observation U/sub 3/Si/sub 2/-Al/ A8140N Fatigue, embrittlement, and fracture A6220M Fatigue, brittleness, fracture, and cracks/ U3Si2Al/ss Si2/ss Al/ss Si/ss U3/ss U/ss
中文摘要	The mixed U/sub 3/Si/sub 2/-Al fuel is a recently developed dispersion fuel structural material adopted in research reactors. The processing method affects strongly the mechanical properties of the dispersion fuel plate, especially, the fatigue properties, which are of great significance for the reliability and performance of fuel elements in most reactors. The fatigue cracks initiation and propagation processes of the U/sub 3/Si/sub 2/-Al dispersion fuel plate with sandwich structure were studied in the present paper by in situ SEM observation. The factors influencing fatigue cracks were analyzed, and the nucleation mechanism was proposed. These results indicated that the fatigue crack originated at the vicinal meat edges and propagated primarily along the fuel meat before fracture. The observed fatigue behaviors can be well described by two fracture modes, namely the mode I and the mixed mode I-II.
语种	英语 ; 英语
出版者	Elsevier ; Netherlands
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/15731]
专题	清华大学
推荐引用方式 GB/T 7714	Xi-Shu Wang,Yong Xu. Experiments, characterizations and analysis of a U/sub 3/Si /sub 2/-Al dispersion fuel plate with sandwich structure[J],2010, 2010.
APA	Xi-Shu Wang,&Yong Xu.(2010).Experiments, characterizations and analysis of a U/sub 3/Si /sub 2/-Al dispersion fuel plate with sandwich structure..
MLA	Xi-Shu Wang,et al."Experiments, characterizations and analysis of a U/sub 3/Si /sub 2/-Al dispersion fuel plate with sandwich structure".(2010).

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