Next Article in Journal
Experimental Study and Numerical Simulation of the Intermittent Feed High-Speed Grinding of TC4 Titanium Alloy
Previous Article in Journal
Aging Phenomena during In-Service Creep Exposure of Heat-Resistant Steels
Previous Article in Special Issue
The Annealing Twins of Fe-20Mn-4Al-0.3C Austenitic Steels during Symmetric and Asymmetric Hot Rolling
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle

Root Cause Analysis of Surface Cracks in Heavy Steel Plates during the Hot Rolling Process

Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
Hormozgan Steel Company (HOSCO), Bandar Abbas, Iran
EEMCS Faculty, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands
Author to whom correspondence should be addressed.
Metals 2019, 9(7), 801;
Received: 7 July 2019 / Revised: 16 July 2019 / Accepted: 19 July 2019 / Published: 20 July 2019
(This article belongs to the Special Issue Rolling of Metals)
PDF [8990 KB, uploaded 20 July 2019]


This paper investigates the root cause of the formation of surface cracks on hot-rolled C–Mn constructional steel heavy plates. Cracks are rather evenly distributed over the surface in the form of colonies of cracks. Samples were cut from the heavy plate. The microstructure of samples in the as-cast and hot-rolled states were studied using optical and electron microscopes as well as energy dispersive X-ray spectroscopy (EDS). Results show that cracks are heavily oxidized. De-carburized areas are also seen alongside cracks. The crack tip is in the form of a deer-horn, indicating that crack branching has taken place during deformation. The crack initiation sites are V-shaped grooves on the surface of as-cast slabs. Correlations between microstructures, processing parameters, and crack formation are discussed. View Full-Text
Keywords: heavy plates; crack; C–Mn steels; hot rolling heavy plates; crack; C–Mn steels; hot rolling

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Bahrami, A.; Kiani Khouzani, M.; Mokhtari, S.A.; Zareh, S.; Yazdan Mehr, M. Root Cause Analysis of Surface Cracks in Heavy Steel Plates during the Hot Rolling Process. Metals 2019, 9, 801.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top