SPECTRUM OF GLIDE BAND SOURCES AND WORK-HARDENING IN LIF SINGLE-CRYSTALS

被引：5

作者：

BENGUS, VZ

KOVALENKO, TP

机构：

[1] Physico-Technical Institute of Low Temperatures, Academy of Sciences of the Ukrainian Ssr

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1979年 / 56卷 / 02期

关键词：

D O I：

10.1002/pssa.2210560207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dependence of the linear density of glide bands in deformed LiF single crystals on the value τh of the flow stress is measured. A similar dependence of dε/dτ and dnh/dτ on τ is discovered. This similarity means that the stress—strain curve of LiF, τ(ε), is strictly related to the integrated distribution of active glide band sources. A hypothesis on the decisive role of surface elastic self strains of the crystal lattice for dislocation nucleation at small external stresses and on surface defects as a source of nucleation of glide bands is suggested. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：473 / 480

页数：8

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