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ArticleName Investigation of mechanical properties of nickel alloy products, obtained using various technological parameters of selective laser melting on 3D prototyping unit
DOI 10.17580/tsm.2016.12.11
ArticleAuthor Beregovskiy V. V., Tretyakov E. V., Shchurenkova S. A., Plesovskikh A. V.

JSC “TsNIITMASh”, Moscow, Russia:

V. V. Beregovskiy, Deputy Chief Executive Officer — Director of the Institute of Technology of Surface and Nanomaterials
E. V. Tretyakov, Deputy Production and Planning Director of the Institute of Technology of Surface and Nanomaterials
S. A. Shchurenkova, Head of Laboratory “Vacuum Coatings and Equipment”, e-mail:


LLC “Ural Gas Centrifuge Plant”, Novouralsk, Russia:
A. V. Plesovskikh, Chief Specialist of the Investigation Department


This work shows the optimization of the choice of technological modes of manufacturing of model samples from heat-resistant nickel alloys by selective laser melting on 3D prototyping unit, making possible the required structural behavior of material in the product. Experimental samples were manufactured from nickel alloy powders KhN62VMYuT (EP-708VD), KhN45MVTYuBR (EP-718) ((ХН62ВМЮТ (ЭП-708ВД), ХН45МВТЮБР (ЭП-718)) by selective laser melting technology on SLM 280 H unit with various technological modes. All technological modes of experimental modes manufacturing used the scanning algorythm – staggered filling, hatching range 0.12 μm, laser spot diameter 80 μm. The main technological parameters, defining the energy input density, varied for the sample manufacturing: power of laser irradiation (245–305 W) and scanning rate (605–1005 m/s), energy input density (0.24–0.50 J/m). Mechanical characteristics of experimental samples during the tension on universal testing machine UTS-100 at the room temperature were defined. The destruction nature for samples, manufactured from the nickel alloy KhN62VMYuT (EP-708VD), is fragile, and there is almost no material plasticity. Maximal durability properties are reached with the energy input density in the range of 0.30–0.35 J/m. Maximal durability properties of experimental samples from nickel alloy KhN45MVTYuBR (EP-718) are reached with the energy input density in the range of 0.30–0.40 J/m. The energy density input in the powder melting zone, is the basic factor, influencing on the durability properties of mateiral.

keywords Additive technologies, selective laser melting, heat-resistant nickel alloys, 3D prototypizing, mechanical properties, 3D-printer

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