MICROSTRUCTURE OF MO-47% RE-0.4% ZR ALLOYS AFTER ROLLING AT ROOM TEMPERATURE. I. ANISOTROPY OF MICROBAND STRUCTURE AND PECULIARITIES OF INTERNAL STRUCTURE OF MICROBANDS

被引：5

作者：

Ditenberg, I. A. ^{[1
]}

Tyumentsev, A. N. ^{[1
,2
]}

Shuba, Ya. V.

机构：

[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk, Russia

[2] Tomsk State Univ, VD Kuznetsov Siberian Phys Tech Inst, Tomsk 634050, Russia

来源：

RUSSIAN PHYSICS JOURNAL | 2010年 / 53卷 / 07期

关键词：

electron microscopy; large plastic deformations; nanostructured states; evaluation of microstructure; plastic deformation mechanism; submicrocrystalline materials; twinning; crystal lattice curvature; disclinations; continual theory of defects;

D O I：

10.1007/s11182-010-9486-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The results of an electron microscopy investigation of microstructure of a Mo - 47% Re - 0.4% Zr alloy after rolling deformation (epsilon approximate to 90%) at room temperature are presented. A special focus is made on investigation of anisotropy of microband nanostructured states and high-energy defect substructures with high values of the crystal lattice curvature, dislocation density and local internal stresses. A disclination mechanism of re-orientation as a mechanism of fragmentation of the internal microband structure is proposed.

引用

页码：706 / 713

页数：8

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