IMR OpenIR
Dislocation arrangements within slip bands during fatigue cracking
Li, Linlin; Zhang, Zhenjun; Zhang, Peng; Li, Cuihong; Zhang, Zhefeng
Corresponding AuthorLi, Linlin(llli@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
2018-11-01
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume145Pages:96-100
AbstractMicrostructures and dislocations associated with the slip band (SB) fatigue cracks were investigated in Cu single crystal and bicrystal. It is found that there are high strain localizations with abundant dislocation cells around the cracked SBs. Due to the high local strain and slip irreversibility, the lattice rotates severely leading to large misorientation and hence low- or high- angle grain boundaries could form between the neighboring cells. Moreover, the dislocation walls can serve as preferential sites for nucleation and propagation of fatigue cracks with high density of dislocations, vacancies and high strain incompatibility.
KeywordCu and Cu alloys Slip band Dislocations Fatigue cracking Strain localization Lattice rotation
Funding OrganizationNational Natural Science Foundation of China (NSFC)
DOI10.1016/j.matchar.2018.08.039
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51171194] ; National Natural Science Foundation of China (NSFC)[51331007] ; National Natural Science Foundation of China (NSFC)[51471170]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS IDWOS:000449449200010
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130463
Collection中国科学院金属研究所
Corresponding AuthorLi, Linlin; Zhang, Zhefeng
AffiliationChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Li, Linlin,Zhang, Zhenjun,Zhang, Peng,et al. Dislocation arrangements within slip bands during fatigue cracking[J]. MATERIALS CHARACTERIZATION,2018,145:96-100.
APA Li, Linlin,Zhang, Zhenjun,Zhang, Peng,Li, Cuihong,&Zhang, Zhefeng.(2018).Dislocation arrangements within slip bands during fatigue cracking.MATERIALS CHARACTERIZATION,145,96-100.
MLA Li, Linlin,et al."Dislocation arrangements within slip bands during fatigue cracking".MATERIALS CHARACTERIZATION 145(2018):96-100.
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