Effect of lattice surface treatment on performance of hardmetal - titanium interpenetrating phase composites

Holovenko, Yaroslav; Kollo, Lauri; Saarna, Mart; Rahmani, Ramin; Soloviova, Tetiana; Antonov, Maksim; Prashanth, Konda Gokuldoss; Cygan, S.; Veinthal, Renno

doi:10.1016/j.ijrmhm.2019.105087

Cited by 18 publications

(7 citation statements)

References 47 publications

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“…If energy is spent on (1) plastic, (2) elastic deformation, or (3) fracture of material, then the acceleration will be lower. The implemented test method can be used for a wide range of material types, such as ceramics or bioceramics, metal alloys, hard materials, and hybrid composites produced by SPS and/or SLM or other methods as additional characterization criteria [28][29][30][31]. The size of the indent can be used as an indication of "dynamic hardness."…”

Section: Resultsmentioning

confidence: 99%

The Impact Resistance of Highly Densified Metal Alloys Manufactured from Gas-Atomized Pre-Alloyed Powders

2021

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With the increasing acceleration of three-dimensional (3D) printing (for example, powder bed fusion (PBF)) of metal alloys as an additive manufacturing process, a comprehensive characterization of 3D-printed materials and structures is inevitable. The purpose of this work was to test highly densified materials produced from gas-atomized pre-alloyed metallic powders, namely 316L, Ti6Al4V, AlSi10Mg, CuNi2SiCr, CoCr28Mo6, and Inconel718, under impact conditions. This was done to demonstrate the best possible performance of such materials. Optimized spark plasma sintering (SPS) parameters (pressure, temperature, heating rate, and holding time) are applied as a novel technique of powder metallurgy. The densification level, impact site (imprint) diameter and volume, and Vickers hardness were studied. The comparison of 316L stainless steel (1) sintered by the SPS process, (2) manufactured by PBF process, and (3) coated by the physical vapor deposition (PVD) process (thin layer of TiAlN) was successfully achieved.

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Section: Resultsmentioning

confidence: 99%

The Impact Resistance of Highly Densified Metal Alloys Manufactured from Gas-Atomized Pre-Alloyed Powders

2021

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“…The sintering temperature was 1000 °C for 316L, 780 °C for Cu15Ni8Sn, 800 °C for pure Cu, and 820 °C for CuNi2SiCr. A Realizer SLM50 device (SLM solutions AG, Germany) based on AM technology was used to fabricate 3D printed bulk or lattice structures [39,40]. For the two Ti6Al4V bulk samples, the following parameters were optimized: 25 µm point distance, exposure time of 25 µs, laser current of 2500 mA, 60 W laser power, 1000 mm/s scan speed, 60 µm hatch distance, and 25 µm layer thickness with an argon gas flow during laser sintering.…”

Section: Discs Production By Sps and Bulk/lattice Structures By Slmmentioning

confidence: 99%

High virucidal potential of novel ceramic–metal composites fabricated via hybrid selective laser melting and spark plasma sintering routes

Rahmani

Molan

Brojan

et al. 2022

Int J Adv Manuf Technol

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In this work, we combine selective laser melting (SLM) and spark plasma sintering (SPS) to fabricate new materials with high virucidal potential. Various bioactive disc-shaped ceramics, metal alloys, and composites were fabricated and tested against bacteriophage Phi6-a model system for RNA-enveloped viruses. We prepared silver-doped titanium dioxide (TiO 2 + 2.5-10% Ag), copper-doped titanium dioxide (TiO 2 + 2.5-10% Cu), Cu2NiSiCr, and Cu15Ni8Sn composite materials (metal lattices filled with ceramics). The virucidal tests of the ceramic and metal powders were performed in buffered suspensions, while the surfaces of the discs were tested by swabbing. The results show that the virus titer on the TiO 2 + 10% Ag ceramic and CuNi2SiCr metal discs decreased by 4 logs after 15 min of exposure to the surfaces compared to the control ceramic and steel discs. We show that SLM 3D printed pre-alloyed CuNi2SiCr filled with bioactive TiO 2 + 10% Ag nanopowders and sintered by the SPS process combines the simplicity of printing with the strength and virucidal properties of Ag and Cu materials. The proposed new virucidal materials were also used for the fabrication of prototype elevator buttons.

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“…With the advent of additive manufacturing (AM), researchers started developing products made of polymers, metals, and alloys [ 43 , 44 , 45 , 46 ]. In the early days, ceramics-based 3D printing was difficult due to the extreme process parameter optimization required to develop the products and their fragile properties [ 47 , 48 , 49 ].…”

Section: Ceramic Based Am With Added Functionalities and Applicationmentioning

confidence: 99%

A Review on Development of Bio-Inspired Implants Using 3D Printing

et al. 2021

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Biomimetics is an emerging field of science that adapts the working principles from nature to fine-tune the engineering design aspects to mimic biological structure and functions. The application mainly focuses on the development of medical implants for hard and soft tissue replacements. Additive manufacturing or 3D printing is an established processing norm with a superior resolution and control over process parameters than conventional methods and has allowed the incessant amalgamation of biomimetics into material manufacturing, thereby improving the adaptation of biomaterials and implants into the human body. The conventional manufacturing practices had design restrictions that prevented mimicking the natural architecture of human tissues into material manufacturing. However, with additive manufacturing, the material construction happens layer-by-layer over multiple axes simultaneously, thus enabling finer control over material placement, thereby overcoming the design challenge that prevented developing complex human architectures. This review substantiates the dexterity of additive manufacturing in utilizing biomimetics to 3D print ceramic, polymer, and metal implants with excellent resemblance to natural tissue. It also cites some clinical references of experimental and commercial approaches employing biomimetic 3D printing of implants.

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Effect of lattice surface treatment on performance of hardmetal - titanium interpenetrating phase composites

Cited by 18 publications

References 47 publications

The Impact Resistance of Highly Densified Metal Alloys Manufactured from Gas-Atomized Pre-Alloyed Powders

The Impact Resistance of Highly Densified Metal Alloys Manufactured from Gas-Atomized Pre-Alloyed Powders

High virucidal potential of novel ceramic–metal composites fabricated via hybrid selective laser melting and spark plasma sintering routes

A Review on Development of Bio-Inspired Implants Using 3D Printing

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