Selection of Technological Parameters of Selective Laser Melting of Mechanocomposite Ti–Nb Powder

Abstract

Abstract—Specimens of Ti–Nb alloy were fabricated of mechanocomposite powder at the experimental installation of selective laser melting Luch; the thickness of the powder layer, the beam scanning velocity, and the laser radiation power were varied. It is revealed that the specimens with high density and homogeneous microstructure can be fabricated with the full melting of the powder layer under the conditions of optimization of the energy input. For leveling internal stresses, it is necessary to preheat the substrate, which will lead to reduction of the temperature gradient between the substrate and the layers, which are melted.

Original language	English
Pages (from-to)	19-23
Number of pages	5
Journal	Inorganic Materials: Applied Research
Volume	10
Issue number	1
DOIs	https://doi.org/10.1134/S2075113319010155
Publication status	Published - 1 Jan 2019

Keywords

Keywords: selective laser melting
laser beam power
laser scanning velocity
microstructure
porosity
titanium–niobium alloy

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)

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10.1134/S2075113319010155

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title = "Selection of Technological Parameters of Selective Laser Melting of Mechanocomposite Ti–Nb Powder",

abstract = "Abstract—Specimens of Ti–Nb alloy were fabricated of mechanocomposite powder at the experimental installation of selective laser melting Luch; the thickness of the powder layer, the beam scanning velocity, and the laser radiation power were varied. It is revealed that the specimens with high density and homogeneous microstructure can be fabricated with the full melting of the powder layer under the conditions of optimization of the energy input. For leveling internal stresses, it is necessary to preheat the substrate, which will lead to reduction of the temperature gradient between the substrate and the layers, which are melted.",

keywords = "Keywords: selective laser melting, laser beam power, laser scanning velocity, microstructure, porosity, titanium–niobium alloy",

author = "Kovalevskaya, {Zh G.} and Fedorov, {V. V.} and Krinitsyn, {M. G.} and Klochkov, {N. S.} and Khimich, {M. A.} and Sharkeev, {Yu P.}",

year = "2019",

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doi = "10.1134/S2075113319010155",

language = "English",

volume = "10",

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journal = "Inorganic Materials: Applied Research",

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TY - JOUR

T1 - Selection of Technological Parameters of Selective Laser Melting of Mechanocomposite Ti–Nb Powder

AU - Kovalevskaya, Zh G.

AU - Fedorov, V. V.

AU - Krinitsyn, M. G.

AU - Klochkov, N. S.

AU - Khimich, M. A.

AU - Sharkeev, Yu P.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Abstract—Specimens of Ti–Nb alloy were fabricated of mechanocomposite powder at the experimental installation of selective laser melting Luch; the thickness of the powder layer, the beam scanning velocity, and the laser radiation power were varied. It is revealed that the specimens with high density and homogeneous microstructure can be fabricated with the full melting of the powder layer under the conditions of optimization of the energy input. For leveling internal stresses, it is necessary to preheat the substrate, which will lead to reduction of the temperature gradient between the substrate and the layers, which are melted.

AB - Abstract—Specimens of Ti–Nb alloy were fabricated of mechanocomposite powder at the experimental installation of selective laser melting Luch; the thickness of the powder layer, the beam scanning velocity, and the laser radiation power were varied. It is revealed that the specimens with high density and homogeneous microstructure can be fabricated with the full melting of the powder layer under the conditions of optimization of the energy input. For leveling internal stresses, it is necessary to preheat the substrate, which will lead to reduction of the temperature gradient between the substrate and the layers, which are melted.

KW - Keywords: selective laser melting

KW - laser beam power

KW - laser scanning velocity

KW - microstructure

KW - porosity

KW - titanium–niobium alloy

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