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Grain boundary effects on the fatigue deformation and cracking behavior of copper bicrystals
Hu, YM; Wang, ZG
Corresponding AuthorHu, YM()
1998-07-01
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
ISSN0142-1123
Volume20Issue:6Pages:463-469
AbstractFatigue tests were performed on two types of [(1) over bar 34] iso-axial copper bicrystals for studying the grain boundary (GB) effects on the cyclic deformation and fatigue cracking behavior and the corresponding mechanism in copper bicrystals. One bicrystal contains a perpendicular GB and the other contains a tilting one with respect to the loading axis. Both the grain boundaries are nearly 180 degrees rotated. It was shown that both the perpendicular and tilting grain boundaries have little effect on the cyclic hardening and saturation behavior of the bicrystals, but show strong effects on the slip deformation and fatigue cracking behavior. The microcracks were found to prefer to nucleate and propagate at the GB, leading to intergranular cracking. However, the crack nucleation behavior was found to be different for the above two iso-axial copper bicrystals. Two types of intergranular fatigue cracking mechanisms were proposed based on the specimen geometry with respect to the dominant slip system and the GB orientation. (C) 1998 Elsevier Science Ltd.
Keywordgrain boundary fatigue deformation cracking copper bicrystals
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
WOS IDWOS:000074823900005
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/108276
Collection中国科学院金属研究所
Corresponding AuthorHu, YM
AffiliationAcad Sinica, Inst Met Phys, State Key Lab Fatigue & Fracture Mat, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Hu, YM,Wang, ZG. Grain boundary effects on the fatigue deformation and cracking behavior of copper bicrystals[J]. INTERNATIONAL JOURNAL OF FATIGUE,1998,20(6):463-469.
APA Hu, YM,&Wang, ZG.(1998).Grain boundary effects on the fatigue deformation and cracking behavior of copper bicrystals.INTERNATIONAL JOURNAL OF FATIGUE,20(6),463-469.
MLA Hu, YM,et al."Grain boundary effects on the fatigue deformation and cracking behavior of copper bicrystals".INTERNATIONAL JOURNAL OF FATIGUE 20.6(1998):463-469.
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