Optimization of the tensile-shear strength of laser-welded lap joints of ultra-high strength abrasion resistance steel
Hietala, Mikko; Ali, Mohammed; Khosravifard, Ali; Keskitalo, Markku; Järvenpää, Antti; Hamada, Atef (2021-02-05)
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, https://doi.org/10.1016/j.jmrt.2021.01.121
© 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe202103197891
Tiivistelmä
Abstract
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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