Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbides
This work focuses on the thermal modeling of the Directed Energy Deposition of a composite coating (316L stainless steel reinforced by Tungsten carbides) on a 316L substrate. The developed finite element model predicts the thermal history and the melt pool dimension evolution in the middle section o...
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doaj-8de56f18fb7d456eb30917a50c91f7e62021-05-18T04:10:10ZengElsevierMaterials & Design0264-12752021-06-01204109661Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbidesSeifallah Fetni0Tommaso Maurizi Enrici1Tobia Niccolini2Hoang Son Tran3Olivier Dedry4Laurent Duchêne5Anne Mertens6Anne Marie Habraken7Corresponding author.; University of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumUniversity of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumUniversity of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumUniversity of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumUniversity of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumUniversity of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumUniversity of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumUniversity of Liège, UEE Research Unit, MSM division, allée de la Découverte, 9 B52/3, B 4000 Liège, Belgium; University of Liège, Aerospace & Mechanics, MMS Unit, allée de la Découverte, 9 B52/3, B 4000 Liège, BelgiumThis work focuses on the thermal modeling of the Directed Energy Deposition of a composite coating (316L stainless steel reinforced by Tungsten carbides) on a 316L substrate. The developed finite element model predicts the thermal history and the melt pool dimension evolution in the middle section of the clad during deposition. Numerical results were correlated with experimental analysis (light optical and scanning electron microscopies and thermocouple records) to validate the model and discuss the possible solidification mechanisms. It was proven that implementation of forced convection in the boundary conditions was of great importance to ensure equilibrium between input energy and heat losses. The maximum peak temperature shows a slight increase trend for the first few layers, followed by an apparent stabilization with increasing clad height. That demonstrates the high heat loss through boundaries. While in literature, most of the modeling studies are focused on single or few layer geometries, this work describes a multi-layered model able to predict the thermal field history during deposition and give consistent data about the new materiel. The model can be applied on other shapes under recalibration. The methodology of calibration is detailed as well as the sensitivity analysis to input parameters.http://www.sciencedirect.com/science/article/pii/S0264127521002148Thermal historyForced convectionHeat accumulationModified conductivityDirected energy deposition (DED)Marangoni phenomenon |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Seifallah Fetni Tommaso Maurizi Enrici Tobia Niccolini Hoang Son Tran Olivier Dedry Laurent Duchêne Anne Mertens Anne Marie Habraken |
spellingShingle |
Seifallah Fetni Tommaso Maurizi Enrici Tobia Niccolini Hoang Son Tran Olivier Dedry Laurent Duchêne Anne Mertens Anne Marie Habraken Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbides Materials & Design Thermal history Forced convection Heat accumulation Modified conductivity Directed energy deposition (DED) Marangoni phenomenon |
author_facet |
Seifallah Fetni Tommaso Maurizi Enrici Tobia Niccolini Hoang Son Tran Olivier Dedry Laurent Duchêne Anne Mertens Anne Marie Habraken |
author_sort |
Seifallah Fetni |
title |
Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbides |
title_short |
Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbides |
title_full |
Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbides |
title_fullStr |
Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbides |
title_full_unstemmed |
Thermal model for the directed energy deposition of composite coatings of 316L stainless steel enriched with tungsten carbides |
title_sort |
thermal model for the directed energy deposition of composite coatings of 316l stainless steel enriched with tungsten carbides |
publisher |
Elsevier |
series |
Materials & Design |
issn |
0264-1275 |
publishDate |
2021-06-01 |
description |
This work focuses on the thermal modeling of the Directed Energy Deposition of a composite coating (316L stainless steel reinforced by Tungsten carbides) on a 316L substrate. The developed finite element model predicts the thermal history and the melt pool dimension evolution in the middle section of the clad during deposition. Numerical results were correlated with experimental analysis (light optical and scanning electron microscopies and thermocouple records) to validate the model and discuss the possible solidification mechanisms. It was proven that implementation of forced convection in the boundary conditions was of great importance to ensure equilibrium between input energy and heat losses. The maximum peak temperature shows a slight increase trend for the first few layers, followed by an apparent stabilization with increasing clad height. That demonstrates the high heat loss through boundaries. While in literature, most of the modeling studies are focused on single or few layer geometries, this work describes a multi-layered model able to predict the thermal field history during deposition and give consistent data about the new materiel. The model can be applied on other shapes under recalibration. The methodology of calibration is detailed as well as the sensitivity analysis to input parameters. |
topic |
Thermal history Forced convection Heat accumulation Modified conductivity Directed energy deposition (DED) Marangoni phenomenon |
url |
http://www.sciencedirect.com/science/article/pii/S0264127521002148 |
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