Numerical simulation and experimental investigation of temperature and residual stresses in GTAW with a heat sink process of Monel 400 plates

Yegaie, Yaser Salehi; Kermanpur, A.; Shamanian, M.

doi:10.1016/j.jmatprotec.2010.05.017

Cited by 37 publications

(8 citation statements)

References 14 publications

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“…However, studies on the stress analysis of such weldments are scantly found in the literatures. Yegaie et al [2] investigated the welding residual stresses of Monel 400 plates. They utilized FE simulation of welding process to evaluate the residual stresses while the holedrilling method was employed to validate the FE model.…”

Section: Welding Residual Stress and Deformationsmentioning

confidence: 99%

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Investigation of Clamping Effect on the Welding Residual Stress and Deformation of Monel Plates by Using the Ultrasonic Stress Measurement and Finite Element Method

Javadi

2014

Journal of Pressure Vessel Technology

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Welding of nickel-based alloys is increasingly used in the industry to manufacture many important components of the marine industries, chemical processing, etc. In this study, a 3D thermomechanical finite element (FE) analysis is employed to evaluate residual stresses and deformations caused by the tungsten inert gas (TIG) welding of Monel 400 (Nickel-Copper alloy) plates. The FE results related to the residual stresses and deformations have been verified by using the hole-drilling stress measurement and common dimensional measurement tools, respectively. Residual stresses analyzed by the FE simulation are then compared with those obtained from ultrasonic stress measurement. The ultrasonic stress measurement is based on acoustoelasticity law, which presents the relation between the acoustic waves and the stress of material. The ultrasonic stress measurement is carried out by using longitudinal critically refracted (L CR ) waves which are longitudinal ultrasonic waves propagated parallel to the surface inside the tested material. Two welded plates are experimentally prepared (with and without using clamp) to investigate the clamping effect on the welding residual stress and deformations. By utilizing the FE analysis along with the L CR method, the distribution of longitudinal residual stress could be achieved. It has been concluded that the applied methodologies are enough accurate to distinguish the clamping effect on the welding residual stresses and deformations of Monel plates.

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Section: Welding Residual Stress and Deformationsmentioning

confidence: 99%

“…The elevated temperature properties of Monel 400, shown in Fig. 1, are extracted from Yegaie et al [2].…”

Section: Finite Element Weldingmentioning

confidence: 99%

Investigation of Clamping Effect on the Welding Residual Stress and Deformation of Monel Plates by Using the Ultrasonic Stress Measurement and Finite Element Method

Javadi

2014

Journal of Pressure Vessel Technology

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“…Experimental as well as numerical work was conducted and veri ed. It was found that numerical tools were very much useful to predict and analyse the bead pro le, temperature distribution and stress [6].…”

Section: Introductionmentioning

confidence: 99%

The Role of Goldack Double Ellipsoidal Parameters in Temperature Distribution for the GTAW Process

Karpagaraj¹,

Suresh²,

Thamizhmanii³

et al. 2020

Preprint

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Numerical simulation is widely used in all the fields of engineering to predict the results. In welding, various finite element tools are used to predict the bead profile, temperature distribution, joint strength, formability and metallurgical changes etc. With respect to the welding process suitable heat source model has to be assigned for numerical simulation. The most suitable heat source for Gas Tungsten Arc Welding (GTAW) process is the Goldack double ellipsoidal model. This model has few parameters like the width of the weld (a), depth of penetration (b), front profile ellipse (Cf) and rear ellipse profile (Cr). In this research article, the influence of these parameters and their effect on the temperature distribution is focused. For this purpose, based on the full factorial design welding simulations are performed with COMSOL. Later, the grey relational technique was used to find the contribution of these parameters. It was concluded from the full factorial method that; temperature variation is depended on the GTAW welding heat source parameters. At 95% confidence level, the width of the weld showed a major role in controlling the temperature. Moreover, the optimum combination of process variables obtained end with minimum temperature rise at a width of 0.7 mm, depth of 5.7 mm and frontal factor of 4.

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“…Some researchers have investigated the different aspects of fusion welding of Monel [4][5][6][7][8]. Ramkumar et al studied the mechanical properties and corrosion behaviour of the Monel 400 joints welded by gas tungsten arc welding (GTAW) [4].…”

Section: Introductionmentioning

confidence: 99%

“…They reduced the heat input in order to achieve finer microstructure and to reduce the HAZ width. The other studies were done to reduce the residual stress of the fusion welding joints of the Monel 400 [6][7][8]. For example, Barsanescu et al reduced the residual stresses of the conventional welded joints of the Monel 400 using a technique named 'parallel heat welding' (PHW) [6].…”

Section: Introductionmentioning

confidence: 99%

High-resolution EBSD characterisation of friction stir welded nickel–copper alloy: effect of the initial microstructure on microstructural evolution and mechanical properties

Heidarzadeh

Chabok

Mousavian

et al. 2019

Philosophical Magazine

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The effect of the initial structure on the microstructure and texture of the friction stir welded Monel 400 alloy joints was investigated. For this aim, Monel 400 alloy of two initially treated conditions, annealed and rolled, was studied. Orientation imaging microscopy with a step size of 70 nm was used to characterise the microstructures of the joints. The mechanical properties were evaluated using Vickers hardness and nanoindentation tests. In the joint of the initial annealed alloy, continuous dynamic recrystallisation governed the grain structure formation. However, in the case of the initial rolled base material, discontinuous dynamic recrystallisation also occurred to cause more random texture, smaller grains, much more high-angle grain boundaries and higher dislocation densities. In the stir zone, the hardness and yielding strength increased respectively from 177 HV to 192 HV and 215.9 to 238.8 MPa by changing the base metal from the initial annealed to rolled condition. In addition, the microstructural features of the different zones containing the texture components and grain boundaries were scrutinised thoroughly.

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Numerical simulation and experimental investigation of temperature and residual stresses in GTAW with a heat sink process of Monel 400 plates

Cited by 37 publications

References 14 publications

Investigation of Clamping Effect on the Welding Residual Stress and Deformation of Monel Plates by Using the Ultrasonic Stress Measurement and Finite Element Method

Investigation of Clamping Effect on the Welding Residual Stress and Deformation of Monel Plates by Using the Ultrasonic Stress Measurement and Finite Element Method

The Role of Goldack Double Ellipsoidal Parameters in Temperature Distribution for the GTAW Process

High-resolution EBSD characterisation of friction stir welded nickel–copper alloy: effect of the initial microstructure on microstructural evolution and mechanical properties

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