Optimization of submerged arc welding process parameters for overlay welding

Silva, Marcos Mesquita da; Batista, Valmir Rodrigues; Maciel, Theóphilo Moura; Santos, Marco Antônio dos; Brasileiro, Taynara Lacerda

doi:10.1080/09507116.2017.1347325

Cited by 17 publications

(3 citation statements)

References 4 publications

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“…Consequently, extensive research has been conducted to model and optimize the effective parameters of the welding process. Researchers have sought optimal values for these parameters by establishing relationships between input and output variables to attain desired properties in the weld metal [15][16][17][18][19][20][21][22][23][24][25][26]. Moreover, the integration of nanoparticles into welding processes has emerged as a promising avenue for achieving high-quality weld metal.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Optimization of Penetration Depth in Submerged Arc Welding: Focused on Boehmite Nanoparticles

Rahmati,

Aghakhani,

Kolahan

2024

Preprint

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The depth of penetration, a crucial metric representing the distance from the plate surface to the pool bottom, holds pivotal significance in determining the weld metal's strength. This investigation delves into the influence of various factors, such as arc voltage, electric current intensity, electrode stick-out, welding speed, and nanoparticle layer thickness, on penetration depth. Utilizing methodologies like the Central Composite Rotatable Design and analysis of variance facilitates a methodical examination of how input variables impact output results, optimizing both time and cost efficiency. Additionally, the implementation of the Genetic Algorithm helps identify the optimal levels of these parameters. The findings reveal that heightened arc voltage and electric current intensity contribute to increased input heat transfer, leading to more extensive melting of the base metal and subsequently augmenting the penetration depth. The dissimilarity in thermal conductivity between the base metal and nanoparticles results in decreased heat transfer to the inner layers of the workpiece, culminating in a reduction in penetration depth with a higher thickness of the nanoparticle layer. Conversely, an increased thickness of the nanoparticle layer is associated with heightened weld dimensions, including both height and width.

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Section: Introductionmentioning

confidence: 99%

Modeling and Optimization of Penetration Depth in Submerged Arc Welding: Focused on Boehmite Nanoparticles

Rahmati,

Aghakhani,

Kolahan

2024

Preprint

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“…To mitigate this issue, employing protective coating layers made of specialized corrosion-resistant materials is an effective preventive measure that helps minimize structural degradation of equipment and components [5][6][7]. With increasing demands for corrosion-resistant materials in various applications, there is a constant need for innovative solutions that can improve material performance, cost efficiency, and reliability [8,9]. The industries operate in highly corrosive environments containing aggressive chemicals, high temperatures, and mechanical stresses.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Investigation of Hastelloy C-22 Powder Weld Overlay on SA 240 Type 316L Using Laser Beam Welding for Enhanced Performance

Mehta,

Chaudhari,

Chaudhari

et al. 2023

JMMP

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This article presents a comprehensive study on the application of Hastelloy C-22 powder weld overlay on SA 240 Type 316L austenitic stainless steel using the laser beam welding process. This novel combination of materials and processes was investigated for the first time, focusing on its potential utility for various industrial applications. Various testing techniques, including visual testing, hardness testing, bend testing, chemical composition analysis using optical spectroscopy, corrosion resistance assessment through the potentiodynamic polarization technique, and macro- and microstructural observation, were employed to evaluate the performance of the weld overlay. The research findings had several significant outcomes. Notably, precise control and minimal alloy mixing were achieved, as evidenced by the dilution at a remarkable height of 0.5 mm from the base metal. The laser welding process resulted in a minimal heat-affected zone and a fine columnar interdendritic microstructure, with average primary and secondary arm spacing values of 3.981 µm and 2.289 µm, respectively. Rigorous visual and bend testing confirmed the integrity of the sound welds in the overlay. Moreover, the high-quality finish of the weld overlay eliminated the need for extensive machining and finishing processes, resulting in cost reductions. This study also demonstrated primary and secondary inter-laminar spacing, leading to improved overall structural integrity. Additionally, the weld overlay exhibited excellent hardness characteristics. The current work contributes to the advancement of welding processes and provides practical solutions to enhance efficiency, cost-effectiveness, and structural performance in relevant industrial applications.

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“…It is well known that steels' welding relies on the optimum size and number density of nonmetallic inclusions as a potent heterogeneous nucleation site, which promotes acicular ferrite (AF) formation [13][14][15]. The best impact toughness in steels is achieved through AF due to the high angle grain boundaries (HAGB) density and chaotic ne interlocking sheaves microstructure [16][17][18]. Mabucci et al [19] showed that manganese depletion in the ferrite matrix-manganese sul de interface is associated with manganese precipitates' formation on the oxide inclusions during cooling; this is one of the critical mechanisms of AF formation.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and Mechanical Evaluations of SAW By Manufactured Granular Basic Bonded Cr, Mo, and Cr-Mo Active Fluxes on ST37 Low Carbon Steel

Alishavandi

Mohammadmirzaei

Ebadi

et al. 2021

Preprint

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Bead-on-plate submerged arc welding was conducted on St37 steel by manufactured Cr, Mo, and Cr-Mo active basic fluxes produced via the unfused bonded method. The base metal heat-affected zone and weld metal (WM) microstructures were identified and characterized by optical microscopy and scanning electron microscopy. Then, the ferrite morphologies volume fraction of WMs were measured. Moreover, the chemical analysis of slag and inclusions was evaluated by point scan energy-dispersive X-ray spectroscopy and extensively discussed. Inclusions number density and size and their effects on the formation of AF were also elaborated. Then, the WMs’ longitudinal tensile strength and Vickers hardness were measured. Finally, the Charpy V-notch test was conducted to determine the impact toughness; the fracture surfaces were investigated, as well.

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Optimization of submerged arc welding process parameters for overlay welding

Cited by 17 publications

References 4 publications

Modeling and Optimization of Penetration Depth in Submerged Arc Welding: Focused on Boehmite Nanoparticles

Modeling and Optimization of Penetration Depth in Submerged Arc Welding: Focused on Boehmite Nanoparticles

Comprehensive Investigation of Hastelloy C-22 Powder Weld Overlay on SA 240 Type 316L Using Laser Beam Welding for Enhanced Performance

Microstructural and Mechanical Evaluations of SAW By Manufactured Granular Basic Bonded Cr, Mo, and Cr-Mo Active Fluxes on ST37 Low Carbon Steel

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