Modelling and Thermophysical Properties of TiO2-SiO2-CaO and SiO2-CaO-MgO Based Electrode Coatings for Offshore Applications

Mishra, Sudish; Sharma, Lochan; Chhibber, Rahul

doi:10.1007/s12633-023-02559-4

Cited by 3 publications

(3 citation statements)

References 62 publications

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“…The regression model of the surface tension is shown in equation (10). The surface tension (ƴs) trace plot is shown in Fig.…”

Section: Influence Of Electrode Coating Compositions On Surface Tensi...mentioning

confidence: 99%

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Wettability study of Developed Silicon based SMAW Electrode Coating Fluxes using SiO 2 -CaO-TiO 2 and SiO 2 -CaO-MgO Ternary System

Mishra,

Sharma,

Chhibber

2023

Preprint

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The current research aims to develop and investigate the wettability behaviour of the fluxes used to coat shielded metal arc welding electrodes for offshore applications. Weld characteristics on duplex stainless steel are significantly affected by the flux's wettability characteristics. The wetting properties of SMAW electrode coatings were measured using the sessile drop technique. Twenty-six flux constituents of coatings have been formulated using the mixture design approach. At a temperature of 1423 K, the contact angle, spread area, surface tension, and adhesion work are measured. X-ray diffraction (XRD) analytical techniques and Fourier transform infrared spectroscopy (FTIR) analysis were employed to determine the phases present in various types of fluxes. The influence of electrode coating flux compositions on different wetting parameters was examined using statistical models. It was observed that CaO, SiO2, and TiO2 individually have an increasing impact on contact angle, whereas MgO has a decreasing effect. CaO.MgO, SiO2.MgO, and TiO2.MgO is the only binary constituent increasing the contact angle. CaO and TiO2 exhibit increasing impacts, whereas SiO2 and MgO have a decreasing impact on the spread area. CaO.SiO2, SiO.TiO2, SiO.MgO, and TiO2.MgO interactions have increasing effects, while other binary interactions show decreasing effects on the spread area. Individual constituents have a positive effect on surface tension. MgO is the only constituent that increases the work of adhesion, and other constituents decrease it. Interactions like CaO, SiO2, CaO, TiO2, and SiO2.TiO2 has an increasing impact on adhesion work, while other binary interactions show a negative effect. Utilizing an artificial neural network approach, the mean square error (MSE) and mean absolute percentage error (MAPE) values for the predicted outcome were effectively minimized. ANN model prediction was compared to regression prediction.

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“…The regression model of the surface tension is shown in equation (10). The surface tension (ƴs) trace plot is shown in Fig.…”

Section: Influence Of Electrode Coating Compositions On Surface Tensi...mentioning

confidence: 99%

“…Shielded metal arc welding is frequently used to weld duplex stainless steel [6][7][8][9][10]. The main goals of SMAW electrode coatings are to protect the weld metal from impurities in the environment, stabilise and deoxidize the arc, improve the weld pool, and move elements from the electrode to the weld zone.…”

Section: Introductionmentioning

confidence: 99%

Wettability study of Developed Silicon based SMAW Electrode Coating Fluxes using SiO 2 -CaO-TiO 2 and SiO 2 -CaO-MgO Ternary System

Mishra,

Sharma,

Chhibber

2023

Preprint

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“…This method allows for the development of new alloys with desirable properties by exploring the composition space and predicting the behavior of the alloy based on a mathematical model, In the field of materials science and engineering, the EVD methodology has emerged as a pivotal tool for optimizing and investigating various materials and processes. Its applications range from optimizing the mechanical properties of Glass Reinforced Concrete (GRC) mixtures 5 to the precise determination of optimal Al-Si-Ni powder ratios for achieving uniform weld microstructures without delamination 6 . In the area of alloy design, it was identified that the only publication employing the EVDis a study focused on powder metallurgy to produce the W-Ni-Cu alloy.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Impact of Chemical Composition on the Oxidation Resistance of 2000 Series Aluminum Alloys using Extreme Vertices Design

Antunes,

Wainer,

Salvo

2024

Mat. Res.

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This research investigates optimizing the properties of 2024 aluminum alloy using the Extreme Vertices Design (EVD) method and linear regression. It examines the oxidation behavior of the alloy during solubilization heat treatment, specifically focusing on the effect of magnesium addition leading to a dark oxide layer. The study employs a comprehensive experimental design and regression models to estimate the specific oxidation rate constant (k). Analysis of results reveals variations in oxidation behavior among alloys and the influence of aluminum, copper, and magnesium concentrations on the oxidation rate. The regression analysis yields a comprehensive equation: k = -0.01Al -4.06Cu -15.71Mg + 4.52Al•Cu + 17.01Al•Mg + 418.5Cu:Mg -447.7Al•Cu•Mg, with statistically significant results (p < 0.05) for all terms. An increase in magnesium concentration was found to enhance the oxidation rate, implying a higher alloy susceptibility to oxidation. These findings underline the value of the EVD method and regression analysis in alloy property optimization, thus aiding in the design of aluminum alloys with improved oxidation resistance.

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Contact angle measurement for SMAW electrode coating fluxes: effect of electrode coating flux compositions on different wetting parameters using statistical models

Mishra,

Sharma,

Chhibber

2024

Int J Interact Des Manuf

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Modelling and Thermophysical Properties of TiO2-SiO2-CaO and SiO2-CaO-MgO Based Electrode Coatings for Offshore Applications

Cited by 3 publications

References 62 publications

Wettability study of Developed Silicon based SMAW Electrode Coating Fluxes using SiO 2 -CaO-TiO 2 and SiO 2 -CaO-MgO Ternary System

Wettability study of Developed Silicon based SMAW Electrode Coating Fluxes using SiO 2 -CaO-TiO 2 and SiO 2 -CaO-MgO Ternary System

Exploring the Impact of Chemical Composition on the Oxidation Resistance of 2000 Series Aluminum Alloys using Extreme Vertices Design

Contact angle measurement for SMAW electrode coating fluxes: effect of electrode coating flux compositions on different wetting parameters using statistical models

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