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

Marulanda Cardona, Diana Maritza; Wongsa-Ngam, Jittraporn; Jimenez, Hernando; Langdon, Terence G.

doi:10.1016/j.jmrt.2017.05.002

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

Author(s)

Marulanda Cardona, Diana Maritza

Wongsa-Ngam, Jittraporn

Jimenez, Hernando

Langdon, Terence G.

Date Issued

October 1, 2017

Type

Article

DOI

10.1016/j.jmrt.2017.05.002

Abstract

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).

Citation

Journal of Materials Research and Technology, 6(4), 355-360, 2017

Subjects

1020 steel

Hardness

High pressure torsion...