Comparison of metallography and mechanical properties of samples printed from WC-Co powder mix using SLM technology in protective atmospheres of argon and nitrogen

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F18%3A43951757" target="_blank" >RIV/49777513:23210/18:43951757 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Comparison of metallography and mechanical properties of samples printed from WC-Co powder mix using SLM technology in protective atmospheres of argon and nitrogen

Original language description

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 evaluated the properties of the printed samples. This was further supplement 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 comparision 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 significantily from the samples printed in the protective atmosphere of argon. Most of the pores that occured 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 homogenous body with minimal internal porosity.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of International Scientific Publications

ISSN

1314-7269

e-ISSN

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Volume of the periodical

12

Issue of the periodical within the volume

2018

Country of publishing house

BG - BULGARIA

Number of pages

9

Pages from-to

326-334

UT code for WoS article

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EID of the result in the Scopus database

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