The Effect of Morphology and Particle-Size Distribution of VT20 Titanium Alloy Powders on the Mechanical Properties of Deposited Coatings

Duriagina, Zoia; Lemishka, I.A.; Trostianchyn, А.М.; Kulyk, Volodymyr; Shvachko, S. G.; Tepla, Tetiana; Плешаков, Едуард

doi:10.1007/s11106-019-00033-8

Cited by 16 publications

(7 citation statements)

References 4 publications

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“…A Fe-Cr-Ni-Mo alloy steel ingot containing rare-earth elements was prepared by vacuum smelting technology according to a certain proportion of the formula, and then the corresponding self-made alloy powder was prepared by mixing powder making technology. In order to ensure the uniformity of the powder feed and the mechanical properties of the coating, spherical FeCrNiMoRE ferrous metal powder with a particle size range of +45 + 150 µm was used [20]. The morphology of the powder is shown in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

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Microstructure and Fatigue of EA4T Steel in Laser Cladding Remanufacturing

Chen

Zhang

et al. 2022

Coatings

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EA4T steel has been widely used in the manufacture of railway axles. Laser cladding remanufacturing technology has been used to repair railway axles, and the failure behaviors of railway axles has been studied. In this work, a class of original FeCrNiMo alloy layers that contain rare-earth elements was successfully fabricated through a laser cladding technique on EA4T steel substrates. The microstructure and elemental distribution of the cladding layers were analyzed through scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron probe microanalysis (EPMA). Simultaneously, the microhardness, bond strength and fatigue properties of different samples were determined. The results indicated that the phase composition of the cladding layer was mainly martensite. The grains in the cladding layer were gradually refined with an increase in the distance from the interface, and the chemical composition distribution was more uniform. At the same time, the bonding property of the cladding layer and matrix was good, and the fatigue strength of the sample was improved.

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Section: Methodsmentioning

confidence: 99%

“…the corresponding self-made alloy powder was prepared by mixing powder making technology. In order to ensure the uniformity of the powder feed and the mechanical properties of the coating, spherical FeCrNiMoRE ferrous metal powder with a particle size range of +45 + 150 μm was used [20]. The morphology of the powder is shown in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

Microstructure and Fatigue of EA4T Steel in Laser Cladding Remanufacturing

Chen

Zhang

et al. 2022

Coatings

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“…The ability of the powder to sinter is related to the packing density while optimizing the particle size. Therefore, during the layer-by-layer build-up of layers, it is important to ensure a correlation between the ratio of the volume of powder particles of different fractions, their surface microrelief and the level of defects [13].…”

Section: Introductionmentioning

confidence: 99%

The influence of the structure and properties of powder heat-resistant alloys on the features of 3D printing of products from them

Duriagina,

Lemishka,

Ovchynnykov

et al. 2024

MATEC Web Conf.

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Methods of fractional analysis of powders based on heat-resistant nickel alloys, electron microscopy and elemental analysis, study of bulk density of powder fractions, as well as approaches of mathematical modeling of packing density were applied in the work. Spherical powders based on heat-resistant nickel alloys of two different fractions: 50...200 μm and ≤63 μm were studied. The morphology of the surface of spherical particles of powders based on heat-resistant nickel alloys of different fractional composition, as well as their granulometric characteristics, was researched. It is shown that as the fractional composition of powder fractions decreases, their homogeneity and bulk density increase. At the same time, it was established that more finely dispersed fractions are characterized by worse fluidity indicators. According to the simulation results, the optimal fractional composition of the powder for filling the previously specified volume was determined. It is shown that as the size of the investigated particles decreases, their packing density increases.

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“…For this reason, finding the best combination of laser power, speed, and path is a crucial aspect. Also, other parameters involving the characteristics of the powder, like the morphology and the size distribution, must be considered during the process parameter choice [ 5 ]. Manufacturers often rely on trial-and-error or empirical methods, such as design of experiment [ 6 ], to find a suitable set of parameters.…”

Section: Introductionmentioning

confidence: 99%

FEM Simulation of AlSi10Mg Artifact for Additive Manufacturing Process Calibration with Industrial-Computed Tomography Validation

Patuelli,

Cestino,

Frulla

et al. 2023

Materials

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Dimensional accuracy of selective laser melting (SLM) parts is one of manufacturers’ major concerns. The additive manufacturing (AM) process is characterized by high-temperature gradients, consolidation, and thermal expansion, which induce residual stress on the part. These stresses are released by separating the part from the baseplate, leading to plastic deformation. Thermo-mechanical finite elements (FE) simulation can be adopted to determine the effect of process parameters on final geometrical accuracy and minimize non-compliant parts. In this research, a geometry for process parameter calibration is presented. The part has been manufactured and then analyzed with industrial computed tomography (iCT). An FE process simulation has been performed considering material removal during base plate separation, and the computed distortions have been compared with the results of the iCT, revealing good accordance between the final product and its digital twin.

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The Effect of Morphology and Particle-Size Distribution of VT20 Titanium Alloy Powders on the Mechanical Properties of Deposited Coatings

Cited by 16 publications

References 4 publications

Microstructure and Fatigue of EA4T Steel in Laser Cladding Remanufacturing

Microstructure and Fatigue of EA4T Steel in Laser Cladding Remanufacturing

The influence of the structure and properties of powder heat-resistant alloys on the features of 3D printing of products from them

FEM Simulation of AlSi10Mg Artifact for Additive Manufacturing Process Calibration with Industrial-Computed Tomography Validation

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