Laser powder bed fusion (L-PBF) of Cu and CuCrZr parts: Influence of an absorptive physical vapor deposition (PVD) coating on the printing process

Lassègue, Pierre; Salvan, C.; Vito, Éric De; Soulas, Romain; Herbin, Morgane; Hemberg, Axel; Baffie, T.; Roux, G.

doi:10.1016/j.addma.2021.101888

Cited by 27 publications

(23 citation statements)

References 20 publications

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“…It has been demonstrated that surface oxidation can increase absorbance up to 58% (from 32% for pure copper); however, this improvement does not appear to be sufficient for the correct processing of the powder [65]. The absorbance of pure copper powders has also been measured in [18,20], its value ranging between 26% and 39%.…”

Section: Powders Absorptancementioning

confidence: 99%

Section: Chemical Vapor Deposition and Physical Vapor Depositionmentioning

confidence: 99%

“…PVD-coated Cu powders were used by Lassègue et al [20] and Tiberto et al [46] for L-PBF processing. Lassègue et al [20] used CrZr particles to coat Cu powders; the authors obtained a coating non-homogeneous in thickness (from 32 to 445 nm). Despite the dishomogeneities and the poor adhesion of the coating film on the Cu powders, a considerable increase of optical absorbance is reported, without major impacts on the processability of the coated powder.…”

Section: Chemical Vapor Deposition and Physical Vapor Depositionmentioning

confidence: 99%

“…86-95 nm [46]. Physical vapor deposition (PVD) techniques have successfully been used to deposit coatings on metal powders, to be further processed through AM, HIP, and press and sinter [20,[147][148][149][150]. An homogeneous coating of stainless steel on copper powder and coating of copper on stainless steel powder were obtained by Matos et al [147].…”

Section: Chemical Vapor Deposition and Physical Vapor Depositionmentioning

confidence: 99%

“…In this frame, the use of coated powders has been significantly increasing in PM, aiming to improve the powders' processability or to modify the final part's microstructural, mechanical, physical, and thermal properties. By coating the powders' surface, it is possible to change melting temperatures [15], the flowability [15,16], and the absorbance [17][18][19][20][21] of the powder itself. Microstructural characteristics can also be modified by coating with a second phase, particularly nanoceramic particles such as ZrO 2 , Al 2 O 3 , B 4 C, SiC, TiB 2 , C-based structures [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Coated Metal Powders for Laser Powder Bed Fusion (L-PBF) Processing: A Review

Bidulský¹,

Gobber

Bidulská

et al. 2021

Metals

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In the last years, functionalized powders are becoming of increasing interest in additive manufacturing (particularly in laser powder bed fusion processing, L-PBF), due to their improved flowability and enhanced processability, particularly in terms of laser absorbance. Functionalized powders may also provide higher final mechanical or physical properties in the manufactured parts, like an increased hardness, a higher tensile strength, and density levels close to theoretical. Coatings represent a possible interesting approach for powders’ functionalizing. Different coating methods have been studied in the past years, either mechanical or non-mechanical. This work aims to present an overview of the currently obtained coated powders, analyzing in detail the processes adopted for their production, the processability of the coated systems, and the mechanical and physical properties of the final parts obtained by using L-PBF for the powders processing.

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Section: Powders Absorptancementioning

confidence: 99%

Section: Chemical Vapor Deposition and Physical Vapor Depositionmentioning

confidence: 99%

Section: Chemical Vapor Deposition and Physical Vapor Depositionmentioning

confidence: 99%

Section: Chemical Vapor Deposition and Physical Vapor Depositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Coated Metal Powders for Laser Powder Bed Fusion (L-PBF) Processing: A Review

Bidulský¹,

Gobber

Bidulská

et al. 2021

Metals

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Laser Cladding of Layered Ti/Nb/Cu Cathode with Homogeneous Arc Ablation Behaviors

Guan

Gao

et al. 2023

Adv Eng Mater

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Arc ablation threatens the cathode operating time and restricts the development of high‐power arc heaters. Surface modification is an effective strategy in improving cathode ablation resistance without reducing matrix conductivities. Herein, Nb layer and Ti layer are laser clad on Cu matrix to decrease the arc ablation of Cu cathode. The total thickness of laser‐clad Nb/Ti layer reaches 1850 μm. The Nb layer restrains Cu from diluting into surface cladding and no detrimental Ti–Cu intermetallic is formed. The surface Ti content is as high as 98.34 at%, guaranteeing the arc discharge homogeneity. The arc ablation behaviors of Ti/Nb/Cu cathodes are investigated in air atmosphere. The layered cathode discharges and ablates homogeneously. The arc discharge center is shallow with no appearance of deep pits or craters. The maximum ablation depth (72.1 μm) after 30 s discharging is ≈33.4% lower than that of Cu cathode. Besides, the cathode ablation rate, 1.61 μg C−1, is ≈27.5% lower than Cu cathode. The improved arc ablation resistance is interpreted in the protective effect of refractory TiO2 layer formed during air arc discharging.

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Magnetron Sputtering as a Microstructural Screening Tool for Laser Additive Manufacturing: Study on Ni Superalloys

Goodelman,

Kassner,

Hodge

2024

Adv Eng Mater

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In this work, magnetron sputtering coupled with a heat treatment is demonstrated as a route to obtain surrogate microstructures comparable to those achieved by laser‐based additive manufacturing (AM) for Ni‐superalloys. Furthermore, this technique is shown to be a novel and efficient way of screening elemental additions with high compositional resolution for AM, without the need for designing and characterizing custom atomized powders. Here, Inconel 718 films are sputtered from both arc melted and AM targets to capture any compositional changes and to develop a comprehensive methodology. Films were characterized via electron microscopy techniques to establish similarities between sputtered plus heat‐treated films and bulk AM Inconel 718 microstructures reported in literature. Since Inconel 718 is susceptible to high temperature S embrittlement, films were then co‐sputtered with small amounts of Zr or Hf, which were found to facilitate sulfur segregation via NanoSIMS analysis. Overall, this work highlights how magnetron sputtering plus heat treatment can be leveraged to rapidly screen novel AM microstructures, thereby accelerating the development and deployment of AM materials.This article is protected by copyright. All rights reserved.

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Laser powder bed fusion (L-PBF) of Cu and CuCrZr parts: Influence of an absorptive physical vapor deposition (PVD) coating on the printing process

Cited by 27 publications

References 20 publications

Coated Metal Powders for Laser Powder Bed Fusion (L-PBF) Processing: A Review

Coated Metal Powders for Laser Powder Bed Fusion (L-PBF) Processing: A Review

Laser Cladding of Layered Ti/Nb/Cu Cathode with Homogeneous Arc Ablation Behaviors

Magnetron Sputtering as a Microstructural Screening Tool for Laser Additive Manufacturing: Study on Ni Superalloys

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