COMPARISON OF METALLOGRAPHY AND MECHANICAL PROPERTIES OF SAMPLES PRINTED FROM WC-CO POWDER MIX USING SLM TECHNOLOGY IN PROTECTIVE ATMOSPHERES OF ARGON AND NITROGEN
David Bricín, Antonín Kříž
Pages: 326-334
Published: 6 Sep 2018
Views: 1,580
Downloads: 224
Abstract: The aim of this study was to compare the properties of samples made from WC-Co powder mixture, printed in two different protective atmospheres, namely nitrogen and argon. An optical and a scanning electron microscope which enables elemental analysis by EDX were used to evaluate the properties of the printed samples. This was further supplemented by analysis of phase composition using X-ray diffraction and of mechanical properties, namely a compression strength test and the Vickers hardness test. Based on a comparison of the results, it was possible to state that the mechanical properties and structure of the samples printed in the protective atmosphere of nitrogen do not differ significantly from the samples printed in the protective atmosphere of argon. Most of the pores that occurred in the structure of the samples were related to the residual moisture of the powder mixture and its other properties. Analysis of the phase composition by X-ray diffraction showed no interaction of nitrogen with the sintered material. Further follow up experiments will search for a suitable WC-Co powder mix for SLM technology. The studies will deal with treatments and processing of the powder mix to create a homogeneous body with minimal internal porosity.
Keywords: protective atmosphere, argon atmosphere, nitrogen atmosphere, slm technology, wc-co, porosity
Cite this article: David Bricín, Antonín Kříž. COMPARISON OF METALLOGRAPHY AND MECHANICAL PROPERTIES OF SAMPLES PRINTED FROM WC-CO POWDER MIX USING SLM TECHNOLOGY IN PROTECTIVE ATMOSPHERES OF ARGON AND NITROGEN. Journal of International Scientific Publications: Materials, Methods & Technologies 12, 326-334 (2018). https://www.scientific-publications.net/en/article/1001710/
Back to the contents of the volume
© 2025 The Author(s). This is an open access article distributed under the terms of the
Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.
Disclaimer: The Publisher and/or the editor(s) are not responsible for the statements, opinions, and data contained in any published works. These are solely the views of the individual author(s) and contributor(s). The Publisher and/or the editor(s) disclaim any liability for injury to individuals or property arising from the ideas, methods, instructions, or products mentioned in the content.
