IMECH-IR  > 力学所知识产出(1956-2008)
Partial-mediated slips in nanocrystalline Ni at high strain rate
Wu XL(武晓雷); Qi Y; Zhu YT; Wu, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
Source PublicationApplied Physics Letters
2007
Volume90Issue:22Pages:221911
ISSN0003-6951
AbstractPrevious experiments on nanocrystalline Ni were conducted under quasistatic strain rates (similar to 3x10(-3)/s), which are much lower than that used in typical molecular dynamics simulations (>3x10(7)/s), thus making direct comparison of modeling and experiments very difficult. In this study, the split Hopkinson bar tests revealed that nanocrystalline Ni prefers twinning to extended partials, especially under higher strain rates (10(3)/s). These observations contradict some reported molecular dynamics simulation results, where only extended partials, but no twins, were observed. The accuracy of the generalized planar fault energies is only partially responsible, but cannot fully account for such a difference. (C) 2007 American Institute of Physics.
KeywordStacking-fault Energies Formation Mechanism Crack-tip Deformation Metals Alloys Nickel Onset Al
DOI10.1063/1.2745250
Indexed BySCI ; EI
Language英语
WOS IDWOS:000246909900028
WOS KeywordSTACKING-FAULT ENERGIES ; FORMATION MECHANISM ; CRACK-TIP ; DEFORMATION ; METALS ; ALLOYS ; NICKEL ; ONSET ; AL
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/33991
Collection力学所知识产出(1956-2008)
Corresponding AuthorWu, XL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Wu XL,Qi Y,Zhu YT,et al. Partial-mediated slips in nanocrystalline Ni at high strain rate[J]. Applied Physics Letters,2007,90(22):221911.
APA 武晓雷,Qi Y,Zhu YT,&Wu, XL .(2007).Partial-mediated slips in nanocrystalline Ni at high strain rate.Applied Physics Letters,90(22),221911.
MLA 武晓雷,et al."Partial-mediated slips in nanocrystalline Ni at high strain rate".Applied Physics Letters 90.22(2007):221911.
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