MICRO-EXPERIMENTAL STUDY OF LARGE PLASTIC DEFORMATION FOR HIGH-PURITY POLYCRYSTALLINE ALUMINUM

被引：5

作者：

仲政

杨卫

黄克智

机构：

[1] Tongji University.

[2] Beijing 100084

[3] Tsinghua University

[4] Currently in the Department of Engineering Mechanics

[5] China

来源：

Acta Mechanica Sinica | 1991年 / 04期

基金：

中国国家自然科学基金;

关键词：

polycrystals; large plastic deformation; grain boundary sliding; micromechanics; grid method;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper aims at revealing various micro-deformation characteristics,such as crystalline slipand grain boundary slide,which are recorded under scanning electronic microscope for high-purity aluminumtensile specimen at room tempreature,These experimental data provide us direct evidence for shear localizationnear the grain boundary network via multi-directional grain boundary slide.The nonuniform deformation in-duced in the grain interiors would have decisive effect on the plastic flow and failure of polycrystalline materi-als.

引用

页码：360 / 368

页数：9