Computational framework for the simulation of multi material laser powder bed fusion

Tang, C. Y.; Yao, Liming; Du, Hongliang

doi:10.1016/j.ijheatmasstransfer.2022.122855

Cited by 32 publications

(13 citation statements)

References 21 publications

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“…As a result, the dissimilar alloy interface has a small and irregular wavy shape ( Figure 5 ). Tang et al [ 57 ] proposed an SLM computational framework for simulating multiple materials, accounting for the physical details of multi-physics and multimetals such as composition diffusion. Through simulation and experiments, Yao et al [ 58 , 59 ] found that when IN718 powder is laser cladded on 316L substrate, the interface between IN718 and SS316 appears like a “fish scale” structure and produces curved grains.…”

Section: Multimetal Research Based On Powder Bed Fusionmentioning

confidence: 99%

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Multimetal Research in Powder Bed Fusion: A Review

et al. 2023

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This article discusses the different forms of powder bed fusion (PBF) techniques, namely laser powder bed fusion (LPBF), electron beam powder bed fusion (EB-PBF) and large-area pulsed laser powder bed fusion (L-APBF). The challenges faced in multimetal additive manufacturing, including material compatibility, porosity, cracks, loss of alloying elements and oxide inclusions, have been extensively discussed. Solutions proposed to overcome these challenges include the optimization of printing parameters, the use of support structures, and post-processing techniques. Future research on metal composites, functionally graded materials, multi-alloy structures and materials with tailored properties are needed to address these challenges and improve the quality and reliability of the final product. The advancement of multimetal additive manufacturing can offer significant benefits for various industries.

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Section: Multimetal Research Based On Powder Bed Fusionmentioning

confidence: 99%

“…Multi-scale modelling: Multi-scale modelling is an important aspect of multimetal PBF. Multi-scale modelling can provide insights into the microstructure and properties of the final product, thus enabling the design of new materials and processes [ 57 ].…”

Section: Potential Research For Multimetal Additive Manufacturingmentioning

confidence: 99%

Multimetal Research in Powder Bed Fusion: A Review

et al. 2023

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“…Liu et al 424 concluded that the heat source absorption increased as the rising of heat input due to the higher recoil pressure in the higher heat input conditions. Tang et al 430 found that the component distribution in the keyhole mode was more uniform than in the conductive mode in the multiphysics and multimaterial SLM processes. This is because the component mixing brought by convection in high power density conditions is stronger.…”

Section: Additive Manufacturing (Am)mentioning

confidence: 99%

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Phase change is a phenomenon that has been extensively utilized in chemical engineering, energy, electronics, vehicle, and space exploration. From both the science and engineering perspectives, gaining a profound understanding of the intricacies of multiphase flow processes accompanied by heat and mass transfer due to phase change is of fundamental importance. Indeed, the computational fluid dynamics (CFD) has been increasingly applied as an effective tool to give an in-depth and efficient analysis of the phase change processes, thereby enhancing our understanding and capacity to control and optimize the phase change effects in these processes. This paper seeks to provide a comprehensive review of the utilization of CFD methodologies in the simulations of phase change flows across various applications, including temperature management, drying, separation and purification, and others. First, the CFD models at various scales that are developed to elucidate the phase change processes are summarized. Second, the noteworthy advances in the recent CFD simulation work on various phase change processes are presented, respectively. Finally, the challenges and potential prospects to facilitate the application of the phase change flow are discussed. The current review aims to offer insightful guidance for the CFD modeling of phase change processes in numerous engineering application scenarios.

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“…Nowadays, laser in-situ alloying using elemental powders have been employed to a wide range of materials, including Ti-Nb, Ti-Ta, high entropy alloys, stainless steel, and even composite materials. [20][21][22][23][24][25][26][27][28][29][30] For instances, Dong et al [31] demonstrated that a cost-affordable and high-performance Ti-6Al-4 V alloy can be DOI: 10.1002/adem.202301445 TC11 alloy is an important high temperate Ti alloy. Its laser in-situ alloying by powder bed fusion-laser beam (PBF-LB) has been explored in this study.…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, laser in‐situ alloying using elemental powders have been employed to a wide range of materials, including Ti‐Nb, Ti‐Ta, high entropy alloys, stainless steel, and even composite materials. [ 20–30 ] For instances, Dong et al [ 31 ] demonstrated that a cost‐affordable and high‐performance Ti‐6Al‐4 V alloy can be developed by using the laser in‐situ alloying approach, and the raw material used was a mixture of low‐cost hydrogenated‐dehydrogenated Ti (HDH‐Ti) powder and elemental Al and V powders. The Ti‐6Al‐4V alloy prepared in this way presents a relative density of 99.3%, an ultimate tensile strength of ≈1083 MPa, and an elongation of 9%, which are comparable to properties obtained using expensive pre‐alloyed powder.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline Ti‐Al‐Mo‐Zr‐Si Alloy (TC11) by Laser Powder Bed Fusion In‐situ Alloying

Ouyang,

Dong,

Wang

et al. 2024

Adv Eng Mater

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TC11 alloy is an important high temperate Ti alloy. Its laser in‐situ alloying by powder bed fusion‐laser beam (PBF‐LB) has been explored in this study. Results show that it is feasible to print the TC11 alloy using elemental powders rather than pre‐alloyed powder, in terms of high density and good combination of strength and ductility at both room and elevated temperatures, along with minor loss of composing elements. Interestingly, it is noticed that an unusual nanocrystalline microstructure has formed due to the use of ZrH2 powder feedstock, partially explaining the reason for the good mechanical properties achieved. Finite element analysis has been employed to understand the in‐situ alloying. Furthermore, a post processing by micro arc oxidation (MAO) has been employed to the alloy, aiming to enhance its high‐temperature oxidation resistance. The results make an implication that hydrides such as ZrH2 may hold the promise to develop nanosized, advanced Ti materials through laser in‐situ alloying, and MAO can be considered for PBF‐LB prepared TC11 alloy.This article is protected by copyright. All rights reserved.

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Computational framework for the simulation of multi material laser powder bed fusion

Cited by 32 publications

References 21 publications

Multimetal Research in Powder Bed Fusion: A Review

Multimetal Research in Powder Bed Fusion: A Review

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Nanocrystalline Ti‐Al‐Mo‐Zr‐Si Alloy (TC11) by Laser Powder Bed Fusion In‐situ Alloying

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