Disclinations, amorphization and microcrack generation at grain boundary junctions in polycrystalline solids

199481 citationsJournal Article

Authors

M. Yu. Gutkin · Institute of Problems of Mechanical Engineering

I. A. Ovid’ko · Institute of Problems of Mechanical Engineering

Abstract

Abstract Splitting of disclinations (decay of disclinations into small-power disclinations) at grain boundary junctions in polycrystalline solids is examined theoretically, and related to local amorphization. Energetic characteristics of the splitting process are revealed. It is shown that such a process competes effectively with microcrack generation at triple junctions of grain boundaries, causing a plastification of deformed polycrystalline materials.

Topics & Keywords

Microstructure and mechanical properties Electromagnetic Effects on Materials Microstructure and Mechanical Properties of Steels

Publication Details

Published in: Philosophical magazine. A/Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties

Volume 70, Issue 4, pp. 561-575

DOI: 10.1080/01418619408242248

Field-Weighted Citation Impact: 2.59

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Disclinations, amorphization and microcrack generation at grain boundary junctions in polycrystalline solids

Authors

Abstract

Topics & Keywords

Publication Details