Development Algorithm of the Technological Process of Manufacturing Gas Turbine Parts by Selective Laser Melting

Сотов, А В; Агаповичев, А. В.; Смелов, В. Г.; Kyarimov, R R

doi:10.1088/1757-899x/302/1/012065

Cited by 6 publications

(4 citation statements)

References 10 publications

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“…The main experiment parameters, laser power (P, in Watts) and laser scanning speed (υ, in mm/s), the scan direction is the x-axis, were determined from the analysis of the literature [15][16][17][18][19][20][21]. Based on the selected value range for P and υ (P ranged from 170 to 270 W, υ ranged from 750 to 1150 mm/s), a matrix of cube-shaped samples was built (with the size of 7 × 7 × 5 mm) for further metallographic studies for finding pores on the surface.…”

Section: Materials Gradementioning

confidence: 99%

Researching the Properties of Samples Fabricated Using Selective Laser Melting from A High-Temperature Nickel-Based Alloy

Mazalov¹,

Shmatov

Zelenina³

et al. 2021

Applied Sciences

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A possible application of a metal powder composition made of a high-temperature nickel-based alloy with high heat strength (the material is analogous to Inconel 718) in selective laser melting (SLM, an additive manufacturing technology) was considered. Peculiarities of material formation in the course of selective laser melting of the metal have been researched, and the mechanical properties of the material were determined. The effect of the thermal treatment mode on the mechanical characteristics was investigated. It was shown that the tensile strength of samples made of a high-temperature nickel alloy when the samples have not been subjected to thermal treatment is ~950 MPa; samples subjected to thermal treatment is ~1070 MPa.

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Section: Materials Gradementioning

confidence: 99%

Researching the Properties of Samples Fabricated Using Selective Laser Melting from A High-Temperature Nickel-Based Alloy

Mazalov¹,

Shmatov

Zelenina³

et al. 2021

Applied Sciences

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“…Further investigation of the particle shape of metal powders by scanning electron microscopy showed that the particles have a pronounced spherical shape. This corresponds to the main requirements of the morphology of the particles using SLS [5], due to ensuring uniform stacking of layers of powder on the substrate. In addition, the spherical shape of the particles provides the greatest uniformity of heating and melting the layer.…”

Section: Research Workmentioning

confidence: 99%

“…However, the various methods of consolidating the powders often have a restricted range in particle size for their implementation. Widely used the process of selective laser melting (SLS) are intended for consolidation of powders with a size from 30 to 70 micrometers [5]. When expanding the range of usable powders with different particle sizes are heated at different speeds, which sometimes causes to firing of certain phases.…”

Section: Introductionmentioning

confidence: 99%

The Study of the Characteristics of Metallic Powders after Electroerosion Dispersion

Кузнецов

Смирнов

Buvakin

2018

SSP

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The article describes the main characteristics of powders of a cobalt alloy and alloyed high carbon steel, which were produced by electroerosion dispersion in the environment of distilled water. The areas for further processing of the powders, depending on the size, morphology and fraction composition of particles were identified in the aim of the best use of the resulting powders, and reducing waste.

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“…In the case of a traditional metal alloy, the surface also has an increased density of defects, including nano- and microsize pores. They are also often defects in materials manufactured using laser additive technology [ 15 , 16 , 17 , 27 , 28 , 29 , 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Physical Mechanism of Selective Healing of Nanopores in Condensed Matter under the Influence of Laser Irradiation and Plasma

Wang,

Ushakov,

Safronov

et al. 2024

Nanomaterials

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The investigation of the features of laser control over the state of nanoscale objects in solid materials is an urgent task of condensed matter physics. We experimentally established the potential for the simultaneous enhancement of hardness and resistance to surface cracking in a titanium alloy due to selective laser irradiation. The regularities of selective heating near nanopores and the influence of the nanopore system on the features of isotherm propagation have been revealed. A physical model is proposed for the healing of nanopores situated in the surface layer of the sample. According to this model and as a result of laser irradiation and laser plasma, a brief transition of the material surface to extreme conditions is initiated.

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Development Algorithm of the Technological Process of Manufacturing Gas Turbine Parts by Selective Laser Melting

Cited by 6 publications

References 10 publications

Researching the Properties of Samples Fabricated Using Selective Laser Melting from A High-Temperature Nickel-Based Alloy

Researching the Properties of Samples Fabricated Using Selective Laser Melting from A High-Temperature Nickel-Based Alloy

The Study of the Characteristics of Metallic Powders after Electroerosion Dispersion

Physical Mechanism of Selective Healing of Nanopores in Condensed Matter under the Influence of Laser Irradiation and Plasma

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