University of Oulu

Mikko Hietala, Mohammed Ali, Ali Khosravifard, Markku Keskitalo, Antti Järvenpää, Atef Hamada, Optimization of the tensile-shear strength of laser-welded lap joints of ultra-high strength abrasion resistance steel, Journal of Materials Research and Technology, Volume 11, 2021, Pages 1434-1442, ISSN 2238-7854,

Optimization of the tensile-shear strength of laser-welded lap joints of ultra-high strength abrasion resistance steel

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Author: Hietala, Mikko1; Ali, Mohammed2; Khosravifard, Ali3;
Organizations: 1Kerttu Saalasti Institute, University of Oulu, Pajatie 5, Nivala, FI-85500, Finland
2Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu, P.O. Box 4200, Oulu, 90014, Finland
3Metallurgical and Materials Engineering Department, School of Engineering, Shiraz Branch, Islamic Azad University, Box 71993-1, Shiraz, Iran
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 4.4 MB)
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Language: English
Published: Elsevier, 2021
Publish Date: 2021-03-19


The tensile-shear strength of laser-welded lap joints developed in abrasion resistance ultra-high strength ARS-600 steel was optimized by evaluating the joints achieved with different welding parameters and various configurations of weld patterns, including multiple continuous longitudinal and transverse weldments. The microstructural evolution of the fusion zone was characterized by electron backscatter diffraction (EBSD) after welding with different values of energy input (60–320 J/mm). Furthermore, in order to better comprehend the shear response of different weld patterns, stress analysis of various longitudinal and transverse lap joints was conducted by the finite element method (FEM).

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Series: Journal of materials research and technology
ISSN: 2238-7854
ISSN-E: 2214-0697
ISSN-L: 2238-7854
Volume: 11
Pages: 1434 - 1442
DOI: 10.1016/j.jmrt.2021.01.121
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Funding: The authors express their gratitude to the European regional development fund for funding this research through the financial support granted to the Efficient Structures (TeRa) project #A74318.
Copyright information: © 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (