University of Oulu

Zarchi, H., Khajesarvi, A., Banadkouki, S., et al. (2019). Microstructural Evolution and Carbon Partitioning in Interstitial Free Weld Simulated API 5L X60 Steel. REVIEWS ON ADVANCED MATERIALS SCIENCE, 58(1), pp. 206-217. Retrieved 10 Dec. 2019, from doi:10.1515/rams-2019-0016

Microstructural evolution and carbon partitioning in interstitial free weld simulated API 5L X60 Steel

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Author: Zarchi, Hamid Reza Karimi1; Khajesarvi, Ali1; Banadkouki, Seyed Sadegh Ghasemi1;
Organizations: 1Department of Mining and Metallurgical Engineering, Yazd University, University Blvd, Safayieh, Yazd, PO Box: 98195 – 741, Iran
2University of Oulu, Materials and Mechanical Engineering, Centre for Advanced Steels Research, Post Box 4200,90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 8 MB)
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Language: English
Published: De Gruyter, 2019
Publish Date: 2019-12-10


The microstructural characterizations and partitioning of carbon element in the weld heat affected zones of a commercial API 5L X60 line pipe steel were studied by applying a high speed heating and cooling dilatometry technique in the present research work. The hollow cylindrical specimens were quickly heated to 1000°C, soaked for only 5 s followed by continuous cooling to ambient temperature. Besides the construction of CCT diagram of this high strength low alloy steel using the dilatation data, the hardening response, microstructural features and carbon partitioning of weld simulated specimens were investigated. The obtained results showed that the hardening response of samples increased from 142 to 261HV10kg with increasing cooling rates. These hardening variations were attributed to the changes in microstructural features and carbon partitioning that occurred between the microconstituents present in the microstructures of weld simulated samples.

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Series: Reviews on advanced materials science
ISSN: 1606-5131
ISSN-E: 1605-8127
ISSN-L: 1605-8127
Volume: 58
Issue: 1
Pages: 206 - 217
DOI: 10.1515/rams-2019-0016
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Funding: One of the authors, Dr. M.C. Somani,would like to express his gratitude to the Academy of Finland for funding this research under the auspices of the Genome of Steel (Profi3) through project #311934.
Copyright information: © 2019 H. R. Karimi Zarchiet al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 License.