Effects on hardness and microstructure of AISI 1020 low-carbon steel processed by high-pressure torsion

被引：33

作者：

Marulanda Cardona, Diana Maritza ^{[1
]}

Wongsa-Ngam, Jittraporn ^{[2
]}

Jimenez, Hernando ^{[1
]}

Langdon, Terence G. ^{[3
]}

机构：

[1] Univ Antonio Narino, Fac Mech Engn, Res Grp Energy & Mat REM, Bogota, Colombia

[2] King Mongkuts Inst Technol Ladkrabang, Fac Engn, Dept Mech Engn, Bangkok, Thailand

[3] Univ Southampton, Fac Engn & Environm, Mat Res Grp, Southampton, Hants, England

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2017年 / 6卷 / 04期

基金：

欧洲研究理事会;

关键词：

1020; steel; High pressure torsion; Hardnessa; SEVERE PLASTIC-DEFORMATION; PEARLITIC STEEL; EVOLUTION; EXAMINE;

D O I：

10.1016/j.jmrt.2017.05.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low-carbon steel AISI 1020 was subjected to high-pressure torsion (HPT) with 6.0 GPa pressure through 1/4-5 turns. The microstructures of the samples in each turn were studied by means of X-ray diffraction (XRD) analyzing the changes in micro-strain, crystallite size and lattice parameter. Vickers testing was utilized to study the microhardness behavior of the samples subjected to HPT processing. The morphology evolution of the samples and especially the changes in ferrite and pearlite structures were studied for different numbers of turns using scanning electron microscopy (SEM). (C) 2017 Brazilian Metallurgical, Materials and Mining Association. Published by Elsevier Editora Ltda. This is an open access article under the CC BY-NC-ND license

引用

页码：355 / 360

页数：6

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