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Nanoscience and Technology: An International Journal

Publicado 4 números por año

ISSN Imprimir: 2572-4258

ISSN En Línea: 2572-4266

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.3 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.7 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00023 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.11 SJR: 0.244 SNIP: 0.521 CiteScore™:: 3.6 H-Index: 14

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INFLUENCE OF GRAINS ORIENTATION ON THE MIGRATION VELOCITY OF HIGH-ANGLE BOUNDARIES

Volumen 8, Edición 3, 2017, pp. 243-259
DOI: 10.1615/NanoSciTechnolIntJ.v8.i3.70
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SINOPSIS

Physical and mechanical properties of polycrystalline materials are determined by the current state of the material structure at various scale levels. The most effective method of forming this structure is thermomechanical processing. The correct physical modeling provides an opportunity to optimize and develop new methods for obtaining materials with the necessary characteristics. The aim of the work is a physically correct mathematical description of the process of dynamic recrystallization. The boundary migration velocity is essentially connected with the driving and retarding forces acting on the boundary. In the process of recrystallization under consideration the driving force is the difference in the energy stored in neighboring grains. Grain boundary energy prevents the normal movement of the high-angle boundary and its bending. A significant anisotropy of the growth rate of high-angle boundaries is observed. This phenomenon is primarily associated with the physical mechanism of migration of grain boundaries. The analysis of the literature shows that the normal motion of high-angle boundaries provides defects in grain boundaries, namely grain boundary steps. The boundary migration velocity is determined by the density of these defects, their height, and velocity of individual defects. The numerical study of the influence of misorientation of neighboring grains and boundaries on the migration velocity is considered. It is shown that for face-centered cubic polycrystals the Kronberg–Wilson relations are satisfied.

CITADO POR
  1. Trusov P. V., Kondratyev N. S., Two-Level Elastoviscoplastic Model: An Application to the Analysis of Grain Structure Evolution under Static Recrystallization, Physical Mesomechanics, 22, 3, 2019. Crossref

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