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

Mikko Hietala; Mohammed Ali; Ali Khosravifard; Markku Keskitalo; Antti Jarvenpaa; Atef Hamada

doi:10.1016/j.jmrt.2021.01.121

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

Mikko Hietala, Mohammed Ali, Ali Khosravifard, Markku Keskitalo, Antti Jarvenpaa, Atef Hamada^*

^*Corresponding author for this work

Not published at VTT

Research output: Contribution to journal › Article › Scientific › peer-review

23 Citations (Scopus)

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 (60e320 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).

Original language	English
Pages (from-to)	1434-1442
Number of pages	9
Journal	Journal of Materials Research and Technology
Volume	11
DOIs	https://doi.org/10.1016/j.jmrt.2021.01.121
Publication status	Published - 2021
MoE publication type	A1 Journal article-refereed

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.

Keywords

Lap joints
Laser-welding
Tensile-shear strength

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10.1016/j.jmrt.2021.01.121Licence: CC BY

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title = "Optimization of the tensile-shear strength of laserwelded lap joints of ultra-high strength abrasion resistance steel",

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 (60e320 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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AU - Hietala, Mikko

AU - Ali, Mohammed

AU - Khosravifard, Ali

AU - Keskitalo, Markku

AU - Jarvenpaa, Antti

AU - Hamada, Atef

PY - 2021

Y1 - 2021

N2 - 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 (60e320 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).

AB - 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 (60e320 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).

KW - Lap joints

KW - Laser-welding

KW - Tensile-shear strength

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JO - Journal of Materials Research and Technology

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

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