A review on laser cladding of high-entropy alloys, their recent trends and potential applications

Arif, Zia Ullah; Khalid, Muhammad Yasir; Rehman, Ehtsham ur; Ullah, Sibghat; Atif, Muhammad; Tariq, Ali

doi:10.1016/j.jmapro.2021.06.041

Cited by 147 publications

(50 citation statements)

References 288 publications

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“…Common preparation methods for Bio-HEAs include vacuum arc melting ( Chen et al, 2016 ), electromagnetic induction melting ( George et al, 2020 ), powder metallurgy techniques ( Hu et al, 2022 ), magnetron sputtering ( Dvurečenskij et al, 2022 ), laser electron beam melting ( Arif et al, 2022 ), and 3D printing additive manufacturing ( Wang S. et al, 2022 ). Smelting is the most common preparation method for Bio-HEA, followed by powder metallurgy and additive manufacturing ( Arif et al, 2021 ). The preparation of homogeneous bulk bioethanol by conventional arc melting is challenging, it requires several post-processing (such as remelting), which is a complex process and only yields samples of simple shapes ( Cieslak et al, 2019 ; Güler et al, 2022 ).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Bio-high entropy alloys: Progress, challenges, and opportunities

Feng

Tang

Liu

et al. 2022

Front. Bioeng. Biotechnol.

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With the continuous progress and development in biomedicine, metallic biomedical materials have attracted significant attention from researchers. Due to the low compatibility of traditional metal implant materials with the human body, it is urgent to develop new biomaterials with excellent mechanical properties and appropriate biocompatibility to solve the adverse reactions caused by long-term implantation. High entropy alloys (HEAs) are nearly equimolar alloys of five or more elements, with huge compositional design space and excellent mechanical properties. In contrast, biological high-entropy alloys (Bio-HEAs) are expected to be a new bio-alloy for biomedicine due to their excellent biocompatibility and tunable mechanical properties. This review summarizes the composition system of Bio-HEAs in recent years, introduces their biocompatibility and mechanical properties of human bone adaptation, and finally puts forward the following suggestions for the development direction of Bio-HEAs: to improve the theory and simulation studies of Bio-HEAs composition design, to quantify the influence of composition, process, post-treatment on the performance of Bio-HEAs, to focus on the loss of Bio-HEAs under actual service conditions, and it is hoped that the clinical application of the new medical alloy Bio-HEAs can be realized as soon as possible.

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Section: Mechanical Propertiesmentioning

confidence: 99%

Bio-high entropy alloys: Progress, challenges, and opportunities

Feng

Tang

Liu

et al. 2022

Front. Bioeng. Biotechnol.

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“…Most of the 4DPed parts are developed using available 3DP techniques including stereolithography (SLA), digital light processing (DLP), direct ink writing (DIW), fused deposition modeling (FDM)/fused filament fabrication (FFF), selective laser sintering, selective laser melting, laminated object manufacturing, and multiphoton lithography (MPL). [ 85–88 ] The selection of 4DP technologies is essential, since, the functional properties of 4DPed objects are printer‐specific. [ 89 ] SMP‐based structures are 4DPed through DIW, FDM, SLA, DLP, and MPL.…”

Section: D Printing Techniquesmentioning

confidence: 99%

4D Printing: Technological and Manufacturing Renaissance

Khalid

Arif

Ahmed

2022

Macro Materials & Eng

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Shape-memory materials (SMMs) combined with 3D printing to develop dynamic and adaptive products which are responsive to physical, chemical, or biological stimuli. These structures are categorized into 4D-printed (4DPed) products which change their shape and properties over time dimension. 4D printing, a novel, multidisciplinary, and futuristic technology is expanding its utilization in different applications including healthcare, space, textile, soft robotics, defence, sports, aerospace, and automotive sectors. This review article focuses on the recent and insightful developments in the 4DP technology of SMMs especially shape-memory polymers. This review also integrates printing technologies, the programming of materials for specific actuating mechanisms, and the most recent applications of 4DPed structures/products. Future perspectives and countless opportunities of this 4DP technology are outlined to address the current challenges which will help evolve and promote this novel technology as the mainstream manufacturing approach for developing real-world products in a myriad of engineering sectors. 4DP technology progresses beyond imagination, since its inception and will promote technological and manufacturing renaissance in the material science field. This technology will profoundly impact manufacturing and daily human life in the future.

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“…The limitation of material usage allows these comparatively expensive materials to be used for corrosion or wear protection applications. In the field of cladding processes, laser metal deposition (LMD) technology dominates [5][6][7][8]. Currently, laser focusing on the substrate to form a molten pool is predominantly used [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

High-Speed Laser Metal Deposition of CrFeCoNi and AlCrFeCoNi HEA Coatings with Narrow Intermixing Zone and their Machining by Turning and Diamond Smoothing

et al. 2022

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The processing of high-entropy alloys (HEAs) via laser metal deposition (LMD) is well known. However, it is still difficult to avoid chemical intermixing of the elements between the coating and the substrate. Therefore, the produced coatings do not have the same chemical composition as the HEA feedstock material. Single-layer CrFeCoNi and AlCrFeCoNi HEA coatings were deposited using high-speed laser metal deposition (HS-LMD). Elemental mapping confirmed a good agreement with the chemical composition of the powder feedstock material, and revealed that chemical intermixing was confined to the immediate substrate interface. The coatings are characterized by a homogeneous structure with good substrate bonding. The machining of these coatings via turning is possible. Subsequent diamond smoothing results in a strong decrease in the surface roughness. This study presents a complete manufacturing chain for the production of high-quality HS-LMD HEA coatings.

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A review on laser cladding of high-entropy alloys, their recent trends and potential applications

Cited by 147 publications

References 288 publications

Bio-high entropy alloys: Progress, challenges, and opportunities

Bio-high entropy alloys: Progress, challenges, and opportunities

4D Printing: Technological and Manufacturing Renaissance

High-Speed Laser Metal Deposition of CrFeCoNi and AlCrFeCoNi HEA Coatings with Narrow Intermixing Zone and their Machining by Turning and Diamond Smoothing

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