Frictional angular rolling extrusion of interstitial-free steel sheets

被引：2
|
作者：
Huang, Yan [1 ]
机构：
[1] Brunel Univ, BCAST, Kingston Lane, Uxbridge UB8 3PH, Middx, England
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2015年 / 4卷 / 01期
基金：
英国工程与自然科学研究理事会;
关键词：
Severe plastic deformation; Frictional angular rolling extrusion (FARE); IF steel; Ultrafine grained structure; Texture; EBSD;
D O I：
10.1016/j.jmrt.2014.12.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Interstitial-free steel sheets were processed using a novel severe plastic deformation technique - frictional angular rolling extrusion (FARE), in order to produce ultrafine grained structures. The deformation was carried out at room temperature and individual sheet specimens were repeatedly processed to various passes. An overall grain size of 200 nm was achieved after eight passes (or an equivalent total strain of 5.3). The present paper reports the evolution of microstructures during deformation, which were examined and characterized using electron backscatter imaging and high resolution EBSD in a field emission gun SEM. The mechanisms of grain refinement are discussed. (C) 2014 Brazilian Metallurgical, Materials and Mining Association. Published by Elsevier Editora Ltda. All rights reserved.
引用
收藏
页码：93 / 99
页数：7
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