Applying the grain orientation dependence of deformation twinning to improve the deformation properties of an Fe-6.5 wt%Si alloy

被引：24

作者：

Fu, Huadong ^{[1
,2
]}

Zhang, Zhihao ^{[1
]}

Jiang, Yanbin ^{[1
]}

Xie, Jianxin ^{[1
,3
]}

机构：

[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China

[2] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England

[3] Beijing Lab Metall Mat & Proc Modern Transportat, Beijing 100083, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 689卷

基金：

中国国家自然科学基金;

关键词：

Fe-6.5 wt%Si alloy; Deformation twinning; Grain orientation; Deformation property; MAGNETIC-PROPERTIES; ELECTRICAL STEEL; COLUMNAR GRAINS; THIN SHEET; TEMPERATURE; TEXTURE; MICROSTRUCTURE; RECRYSTALLIZATION; BEHAVIOR; PHASE;

D O I：

10.1016/j.jallcom.2016.07.319

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The deformation behaviours of the equiaxed-grained and columnar-grained Fe-6.5 wt% Si alloy were comparatively studied and the mechanism of the enhanced deformation properties of columnar-grained alloys was discussed. A grain orientation dependence of the deformation twinning was identified in the Fe-6.5 wt% Si alloy. Twins tend to occur in grains with a tensile orientation near the < 001 > corner and a compressive orientation near the < 101 >-< 111 > line, which is closely related to the Schmid factor value of each orientation. The significant enhancement of the deformation properties of the columnar-grained Fe-6.5 wt% Si alloy was mainly ascribed to the promotion of twinning deformation by the grain orientation control. These results provide a theoretical guide for the microstructure design of brittle metals, such as Fe-6.5 wt% Si alloy. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：307 / 312

页数：6

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