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Intrinsic structure of acoustic emission events during jerky flow in an Al alloy

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  • معلومة اضافية
    • Contributors:
      Laboratoire de physique et mécanique des matériaux (LPMM); Université Paul Verlaine - Metz (UPVM)-Institut National Polytechnique de Lorraine (INPL)-Ecole Nationale d'Ingénieurs de Metz (ENIM); Université de Lorraine (UL)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS); Osipyan Institute of Solid State Physics (ISSP); Russian Academy of Sciences Moscow (RAS); Department of Physics of Materials; Univerzita Karlova Praha, Česká republika = Charles University Prague, Czech Republic (UK); Bergen Engineering AS; ARC Centre of Excellence for Design in Light Metals; Monash University Clayton; Department of Materials Engineering; CSIRO Division of Materials Science and Engineering; Commonwealth Scientific and Industrial Research Organisation Australia (CSIRO)-Commonwealth Scientific and Industrial Research Organisation Australia (CSIRO); Laboratoire de glaciologie et géophysique de l'environnement (LGGE); Observatoire des Sciences de l'Univers de Grenoble (OSUG); Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS); Research Plan MSM under Grant No. 0021620834 financed by the Ministry of Education, Youth and Sports of the Czech Republic and from the Czech Science Foundation under Grant No. 106/07/0218.
    • بيانات النشر:
      HAL CCSD
      American Physical Society
    • الموضوع:
      2009
    • Collection:
      Institut national des sciences de l'Univers: HAL-INSU
    • نبذة مختصرة :
      International audience ; Scaling behavior is found in acoustic-emission events associated with stress drops observed in velocity-driven plastic deformation of an Al alloy, which exhibits jerky plastic flow. The occurrence of scaling proves that these acoustic-emission events, which are commonly regarded as “elementary” ones, have a small-scale self-organized structure comprising a group of peaks correlated in time. This structure reveals details of the temporal variation in elementary plastic events at a microsecond scale, which are hardly accessible by other measurement techniques.
    • الرقم المعرف:
      10.1103/PhysRevB.79.174114
    • الدخول الالكتروني :
      https://insu.hal.science/insu-00420864
      https://insu.hal.science/insu-00420864v1/document
      https://insu.hal.science/insu-00420864v1/file/lebyodkin2009.pdf
      https://doi.org/10.1103/PhysRevB.79.174114
    • Rights:
      http://creativecommons.org/licenses/by/ ; info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.98E52892