Strain localization in nano-crystalline iron processed by severe plastic deformation

被引：0
|
作者：
Sus-Ryszkowska, M [1 ]
Miskiewicz, M [1 ]
Pakiela, Z [1 ]
Kurzydlowski, KJ [1 ]
机构：
[1] Warsaw Univ Technol, Fac Mat Sci & Engn, PL-02507 Warsaw, Poland
来源：
BULK AND GRADED NANOMETALS | 2005年 / 101-102卷
关键词：
nanomaterials; equal channel angular pressing; tensile tests; micro-samples; strain localization; fracture surface;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present work technically pure iron was subjected to severe plastic deformation (SPD) by equal channel angular pressing (ECAP) which brought about a significant refinement of microstructure. Characteristic non-homogeneous, banded structure was observed at micro- and macro-scale. Tensile tests of ECAP material were carried out using special micro-samples. The fracture surface observations reveal that failure mode depends on microstructure banding. Plastic deformation of the specimens has also been modelled by finite element method (FEM).
引用
收藏
页码：81 / 84
页数：4
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