Modelling of Heat Affected Zone in Submerged arc Welding Butt Joint with Thorough Penetration

Winczek, Jerzy; Parkitny, R.

doi:10.1016/j.proeng.2017.02.195

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…The results of the temperature field calculations are presented in [28] as well as the boundaries of the heat-affected zones (fusion line, full and partial transformation zones) (Fig. 3).…”

Section: Example Of Computationsmentioning

confidence: 99%

Analytical model of stress field in submerged arc welding butt joint with thorough penetration

et al. 2018

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Abstract. Analytical model of temporary and residual stresses for butt welding with thorough penetration was described assuming planar section hypothesis and using integral equations of stress equilibrium of the bar and simple Hooke's law. In solution the effect of phase transformations (structure changes and structural strains) has been taken into account. Phase transformations during heating are limited by temperature values at the beginning and at the end of austenitic transformation, depending on chemical composition of steel while the progress of phase transformations during cooling is determined on the basis of TTT-welding diagram. Temperature values at the beginning and at the end of transformation are conditioned by the speed of heating. Kinetics of diffusional transformation is described basing on Johnson-MehlAvrami-Kolmogorov equation, while martensitic transformation, basing on KoistinenMarburger equation. Stresses in elasto-plastic state are determined by iteration, using elastic solutions method with changeable longitudinal modulus of elasticity, conditioned by stress-strain curve. Computations of stress field have been conducted for one-side butt welded of two steel flats made from S235 steel. It has enabled a clear interpretation of influence of temperature field and phase transformation on stresses caused by welding using Submerged Arc Welding (SAW) method.

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“…The results of the temperature field calculations are presented in [28] as well as the boundaries of the heat-affected zones (fusion line, full and partial transformation zones) (Fig. 3).…”

Section: Example Of Computationsmentioning

confidence: 99%

Analytical model of stress field in submerged arc welding butt joint with thorough penetration

et al. 2018

Self Cite

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“…Many studies are prepared about submerged arc welding processes and welding fluxes. These investigations mainly covers the subjects about current effects, optimizing the welding parameters, analysis of welding aspects, dilution in weld zones, chemical and thermo-physical properties of weld metals and heat affected zones (HAZ), prediction of weld regions behavior properties, the effects of inclusions and alloying elements on weld zones [3][4][5][6][7][8][9][10][11][12][13][14]. But this study especially focuses on the effects of flux types on micro-structural and mechanical developments of S235 steel alloys joined by submerged arc welding.…”

Section: Introductionmentioning

confidence: 99%

S235 Yapı Çeliğinin Tozaltı Kaynağında Toz Türünün Mekanik ve Mikroyapısal Özelliklere Etkileri

Başyiğit¹,

Solak²

2020

El-Cezeri Fen Ve Mühendislik Dergisi

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S235 fine grained steel alloys are demanded especially in structural components of buildings, factories and mechanical parts of machines where yield strength values close to minimum 235 mega-pascals (MPa) are in concern. These steels are classified in low alloyed steel groups and in consequence of the cheapness of these alloys their consumption is increasing as well. In this work; 15 mm of S235 structural steel plates are submerged arc welded by 2 types of welding fluxes. The first welding flux is selected as SA AB 1 68 AC H5 as basic character with the basicity index of 1.4 while the second flux is SA AR 1 77 AC rutile as low basic character with the basicity index of 0.7 according to TS EN ISO 14174 by both using the same welding wire S2 of 4mm in diameter according to TS EN ISO 14171-A standard. The effects of flux composition on microstructural and mechanical properties of welded S235 steel alloy are examined. Micro-vickers hardness surveys of base metal and heat affected zones with weld metals, transverse tensile tests and micro-structural investigations are applied for comparison of these two types of welding fluxes. The samples joined by basic and rutile flux are both qualified in micro-vickers hardness surveys and transverse tensile tests. Rutile flux transformed the ferriticpearlitic microstructure into needle like view while basic flux maintained it more globular. Whether globular microstructure is desired in case of toughness considerations in industrial applications, basic flux should be preferred.

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Modeling and analysis of residual stress distribution in butt welded joint with thorough penetration taking into account influence of groove weld

Winczek

Gucwa

Kukuryk

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Modelling of Heat Affected Zone in Submerged arc Welding Butt Joint with Thorough Penetration

Cited by 4 publications

References 11 publications

Analytical model of stress field in submerged arc welding butt joint with thorough penetration

Analytical model of stress field in submerged arc welding butt joint with thorough penetration

S235 Yapı Çeliğinin Tozaltı Kaynağında Toz Türünün Mekanik ve Mikroyapısal Özelliklere Etkileri

Modeling and analysis of residual stress distribution in butt welded joint with thorough penetration taking into account influence of groove weld

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