Investigation the effect of FeNiCoCrMo HEA addition on properties of B4C ceramic prepared by spark plasma sintering

Ocak, Burak Cagri; Göller, Gültekin

doi:10.1016/j.jeurceramsoc.2021.06.003

Cited by 19 publications

(5 citation statements)

References 52 publications

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“…In contrast, selective laser melting (SLM) and selective electron beam melting (SEBM) offer higher processing accuracy and minimal surface roughness. In addition, in PBF technology, due to the extremely high cooling rate (10 5 –10 7 K/s), smaller microstructures can be obtained compared to the conventional casting process (100 K/s), which greatly improves the mechanical properties of the part ( Huang et al, 2021 ; Muftah et al, 2021 ; Ocak and Goller, 2021 ). For HEAs, the high cooling rate can greatly inhibit the segregation of elements and make it easier to achieve a solid solution structure with a strengthening effect ( Zhu et al, 2021 ).…”

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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“…This indicates that the interfacial bonding among WB 2 grains is weaker than the interface between WB 2 and B 4 C grains. The intergranular fracture mode could be the main contribution for the increased fracture toughness of S14 due to crack deflection, which absorbs more energy during the crack propagation 46,63 …”

Section: Resultsmentioning

confidence: 99%

“…The intergranular fracture mode could be the main contribution for the increased fracture toughness of S14 due to crack deflection, which absorbs more energy during the crack propagation. 46,63 Flexural strength data of the WB 2 -B 4 C composite samples are shown in Table 3. Those data of WB 2 -Co, 18…”

Section: Vickers Hardness Fracture Toughness and Flexural Strengthmentioning

confidence: 99%

Microstructure and mechanical properties of WB₂–B₄C composites fabricated by boro/carbothermal reduction and SPS

et al. 2022

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The phase composition, microstructure, and mechanical properties of the WB2–B4C composites fabricated by a combination of boro/carbothermal reduction and spark plasma sintering (SPS) method with WO3, B4C, and graphite as raw materials were investigated in this study. The experimental results showed that the relative density of the as‐sintered WB2–B4C composites was ∼93.1% and ∼99.5%, respectively, after being SPS sintered at 1600°C under the applied load of 30 MPa for 10 min. Scanning electron microscope analysis showed that a network structure with WB2 grains surrounded by B4C grains was observed after sintering. Analyses of high‐resolution TEM showed semi‐coherent interface and lattice distortion transition region between WB2 and B4C grains. The Vickers hardness of WB2–B4C composite increased to 22.3 ± 0.9 GPa at 9.8 N owing to the fully dense, solid solution of C, and three‐dimensional network structure. Moreover, the fracture toughness and flexural strength of WB2–B4C composite reach 6.04 ± 0.81 MPa m1/2 and 750 ± 80 MPa, respectively, which could be attributed to the semi‐coherent interface between WB2 and B4C grains.

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“…Densification of boron carbide can be achieved without reducing its mechanical properties by using suitable sintering aids and/or applying external pressure (e.g., hot pressing, hot isostatic pressing). SPS technology helps achieve dense products without any coarsening of the grains [2,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Physical Fields during Spark Plasma Sintering of Boron Carbide

et al. 2023

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Spark plasma sintering is a new technology for preparing ceramic materials. In this article, a thermal-electric-mechanical coupled model is used to simulate the spark plasma sintering process of boron carbide. The solution of the thermal-electric part was based on the charge conservation equation and the energy conservation equation. A phenomenological constitutive model (Drucker-Prager Cap model) was used to simulate the densification process of boron carbide powder. To reflect the influence of temperature on sintering performance, the model parameters were set as functions of temperature. Spark plasma sintering experiments were conducted at four temperatures: 1500 °C, 1600 °C, 1700 °C, and 1800 °C, and the sintering curves were obtained. The parameter optimization software was integrated with the finite element analysis software, and the model parameters at different temperatures were obtained through the parameter inverse identification method by minimizing the difference between the experimental displacement curve and the simulated displacement curve. The Drucker-Prager Cap model was then incorporated into the coupled finite element framework to analyze the changes of various physical fields of the system over time during the sintering process.

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Investigation the effect of FeNiCoCrMo HEA addition on properties of B4C ceramic prepared by spark plasma sintering

Cited by 19 publications

References 52 publications

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

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

Microstructure and mechanical properties of WB₂–B₄C composites fabricated by boro/carbothermal reduction and SPS

Numerical Simulation of Physical Fields during Spark Plasma Sintering of Boron Carbide

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Investigation the effect of FeNiCoCrMo HEA addition on properties of B4C ceramic prepared by spark plasma sintering

Cited by 19 publications

References 52 publications

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

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

Microstructure and mechanical properties of WB2–B4C composites fabricated by boro/carbothermal reduction and SPS

Numerical Simulation of Physical Fields during Spark Plasma Sintering of Boron Carbide

Contact Info

Product

Resources

About

Microstructure and mechanical properties of WB₂–B₄C composites fabricated by boro/carbothermal reduction and SPS