Transient behaviour of deposition of liquid metal droplets on a solid substrate

Chapuis, Julien; Romero, E.; Soulié, Fabien; Bordreuil, Cyril; Fras, Gilles

doi:10.1007/s00231-015-1742-9

Cited by 8 publications

(1 citation statement)

References 17 publications

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“…[14][15][16] Moreover, the carburization will occur at iron-carbon interface due to the carbon content of molten iron in hearth is undersaturated. 17,18) The changes of element content and properties of molten iron are mainly reflected at the iron-carbon interface. 19) The ironcarbon interface plays an important role in the erosion of carbon brick and the deterioration of coke, which has been concerned by many scholars.…”

Section: Introductionmentioning

confidence: 99%

Iron-Carbon Interface Phenomenon and Reaction Behavior Analysis in Blast Furnace Hearth

et al. 2023

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The iron-carbon interface plays an important role in hearth, the dissection investigation of BFs was carried out to clarify the iron-carbon interface phenomenon and reaction behavior. The results show that the iron-coke interface can be divided into two types: partial coverage and overall coverage. The molten iron penetration from the interface to the center of coke is found. The hot face of residual carbon brick has obvious embrittlement layers, the pulverization phenomenon of carbon brick is observed, cracks appear in the carbon brick near the iron-carbon brick interface. Many holes in coke are filled with iron and slag, the filling rate increases as the coke moves towards the lower part of hearth. The graphitization degree of coke increases through dissolution precipitation and carbide transformation mechanism, the high graphitization of coke caused by carburization at iron-coke interface is the essential cause of coke deterioration. The flexural strength of carbon brick decreases under the alternate process of penetration and dissolution, effect of Zn. The critical temperature difference for crack generation decreases from 286 ℃ to 208 ℃ after the reaction, which makes it easier for the carbon brick to produce cracks. These cracks produce brittle embrittlement layers, which accelerates the erosion of carbon brick. The carburization of coke and the dissolution carburization of carbon brick are carried out simultaneously in hearth, there is a competitive carburization between iron-coke interface and iron-carbon brick interface. The methods of controlling competitive carburization are put forward to delay the erosion of carbon brick.

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Section: Introductionmentioning

confidence: 99%

Iron-Carbon Interface Phenomenon and Reaction Behavior Analysis in Blast Furnace Hearth

et al. 2023

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A complementary approach to experimental modeling and analysis of welding processes: dimensional analysis

Liang

Shi

et al. 2023

Int J Adv Manuf Technol

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Integrating dimensional and scaling analyses with functional modelling and graphs: An approach to comprehend mass transfer in welding

Dhalpe,

Mokhtarian,

Panicker

et al. 2024

Int J Adv Manuf Technol

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Significant efforts have been made to understand the intricacies of the welding process using numerical methods, machine learning, dimensional, and scaling analyses. Dimensional analysis (DA) is used for qualitative studies of weld pool spreading, heat transfer in welding, welding parameters, and detachment-droplet formation in welding. Nevertheless, DA have been used often in a rather conventional manner. This article proposes to combine DA principles with causally oriented graphical representations and functional analysis to augment the separate capabilities of those methods. The approach uses a physics-based functional model to decompose the welding phenomena into functions, with dimensionless numbers (π) representing aspects of those functions in form of mathematical relationships between the variables. These mathematical relationships are illustrated as a causally oriented graph. This graph is transformed into a system dynamic counterpart. The values of π numbers are estimated using a single example with the developed methodology. The π values in the model are the analogous of biases in Artificial Neural Networks (ANN). The current modelling approach has the advantage of exploiting supplementary sources of knowledge and consequently requires limited data in comparison to supervised machine learning (ML) algorithms used in the field. The proposed methodology is demonstrated with a case study of gas metal arc welding (GMAW) for mild steel. The developed model predicts the droplet formation in GMAW with high accuracy and offer multiple possibilities for extension and generalization to other welding and additive manufacturing processes.

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Transient behaviour of deposition of liquid metal droplets on a solid substrate

Cited by 8 publications

References 17 publications

Iron-Carbon Interface Phenomenon and Reaction Behavior Analysis in Blast Furnace Hearth

Iron-Carbon Interface Phenomenon and Reaction Behavior Analysis in Blast Furnace Hearth

A complementary approach to experimental modeling and analysis of welding processes: dimensional analysis

Integrating dimensional and scaling analyses with functional modelling and graphs: An approach to comprehend mass transfer in welding

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