University of Oulu

V Javaheri et al 2021 IOP Conf. Ser.: Mater. Sci. Eng. 1121 012037

Effect of post-rolling cooling on the hot-rolled microstructure and texture of a new medium-carbon steel

Saved in:
Author: Javaheri, V1; Sadeghpour, S1; Kaijalainen, A1;
Organizations: 1Materials and Mechanical Engineering, Centre for Advanced Steel Research, University of Oulu, 90014 Oulu, Finland
2Department of Mining and Metallurgical Engineering, Yazd University, Iran
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 5 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2021041510485
Language: English
Published: IOP Publishing, 2021
Publish Date: 2021-04-15
Description:

Abstract

Thermomechanical processing consisted of hot-rolling in the austenitic region with deformation both above and below the non-recrystallization temperature. Immediately after rolling, specimens were directly quenched in water to three different temperatures of 560 °C, 420 °C and room temperature. The first two samples, which were quenched to 560° C and 420°C, immediately cooled slowly in the furnace. The microstructure of samples quenched to 560 °C mostly comprised of upper bainite whereas the samples quenched to 420 °C mainly consisted of lath-type bainite. The microstructure of sample direct-quenched to room temperature was mainly martensite. The transformation texture of all samples at the midthickness position showed the same general texture, consisted of mainly ᵅ and ᵞ fibers components with high intensities close to the transformed copper {112}<110>ᵅ, transformed brass {111}<112>ᵅ and rotated cube {001}<110>ᵅ components. However, the direct-quenched sample produced slightly more intense texture compared to the bainitic samples. The local texture of samples near the rolled surface owing to sever deformation showed the shear features consisting of major components of {112}<111>ᵅ, {110}<112>ᵅ and {110}<111>ᵅ.

see all

Series: IOP conference series. Materials science and engineering
ISSN: 1757-8981
ISSN-E: 1757-899X
ISSN-L: 1757-8981
Volume: 1121
Article number: 012037
DOI: 10.1088/1757-899X/1121/1/012037
OADOI: https://oadoi.org/10.1088/1757-899X/1121/1/012037
Host publication: The 19th International Conference on Textures of Materials (ICOTOM19 2021) 1st – 4th March 2021, Virtual Conference, Japan
Conference: International Conference on Textures of Materials
Type of Publication: A4 Article in conference proceedings
Field of Science: 216 Materials engineering
Subjects:
Funding: The authors are grateful for financial support from Academy of Finland (#311934-Genome of Steel Project). Vahid Javaheri would also like to thank the Jenny and Antti Wihuri Foundation for awarding a personal grant.
Academy of Finland Grant Number: 311934
Detailed Information: 311934 (Academy of Finland Funding decision)
Copyright information: © 2021 The Authors. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
  https://creativecommons.org/licenses/by/3.0/