Multiaxial ratcheting behavior of zirconium alloy tubes under combined cyclic axial load and internal pressure

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	Multiaxial ratcheting behavior of zirconium alloy tubes under combined cyclic axial load and internal pressure
	Chen, G. ; Zhang, X. ; Xu, D. K. ; Li, D. H. ; Chen, X. ; Zhang, Z.
刊名	JOURNAL OF NUCLEAR MATERIALS
	2017-06-01
卷号	489 页码:99-108
关键词	Zirconium alloy Multiaxial loading Ratcheting Loading history Microstructure
ISSN号	0022-3115
通讯作者	Zhang, Z (reprint author), Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China.
中文摘要	In this study, a series of uniaxial and multiaxial ratcheting tests were conducted at room temperature on zirconium alloy tubes. The experimental results showed that for uniaxial symmetrical cyclic test, the axial ratcheting strain epsilon(x) did not accumulate obviously in initial stage, but gradually increased up to 1% with increasing stress amplitude sigma(xa). For multiaxial ratcheting tests, the zirconium alloy tube was highly sensitive to both the axial stress amplitude sxa and the internal pressure pi. The hoop ratcheting strain 3q increased continuously with the increase of axial stress amplitude, whereas the evolution of axial ratcheting strain epsilon(x) was related to the axial stress amplitude. The internal pressure restricted the ratcheting accumulation in the axial direction, but promoted the hoop ratcheting strain on the contrary. The prior loading history greatly restrained the ratcheting behavior of subsequent cycling with a small internal pressure. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Materials Science, Multidisciplinary ; Nuclear Science & Technology
收录类别	SCI
资助信息	National Natural Science Foundation of China [51471116, 51435012]; Program for New Century Excellent Talents in University of China [NCET-13-0400]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78120]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Chen, G.,Zhang, X.,Xu, D. K.,et al. Multiaxial ratcheting behavior of zirconium alloy tubes under combined cyclic axial load and internal pressure[J]. JOURNAL OF NUCLEAR MATERIALS,2017,489:99-108.
APA	Chen, G.,Zhang, X.,Xu, D. K.,Li, D. H.,Chen, X.,&Zhang, Z..(2017).Multiaxial ratcheting behavior of zirconium alloy tubes under combined cyclic axial load and internal pressure.JOURNAL OF NUCLEAR MATERIALS,489,99-108.
MLA	Chen, G.,et al."Multiaxial ratcheting behavior of zirconium alloy tubes under combined cyclic axial load and internal pressure".JOURNAL OF NUCLEAR MATERIALS 489(2017):99-108.