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

被引：1
|
作者：
Kovalevskaya Z.G. [1 ,2 ]
Fedorov V.V. [1 ]
Krinitsyn M.G. [1 ,2 ]
Klochkov N.S. [1 ]
Khimich M.A. [2 ,3 ]
Sharkeev Y.P. [1 ,2 ]
机构：
[1] National Research Tomsk Polytechnic University (NR TPU), Tomsk
[2] Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences (ISPMS SB RAS), Tomsk
[3] National Research Tomsk State University (NR TSU), Tomsk
来源：
Inorganic Materials: Applied Research | 2019年 / 10卷 / 01期
基金：
俄罗斯科学基金会;
关键词：
Keywords: selective laser melting; laser beam power; laser scanning velocity; microstructure; porosity; titanium–niobium alloy;
D O I：
10.1134/S2075113319010155
中图分类号：
学科分类号：
摘要：
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. © 2019, Pleiades Publishing, Ltd.
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页码：19 / 23
页数：4
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