MULTICOMPONENT ALLOY POWDERS PREPARATION BY MECHANICAL ALLOYING

1 MORAVČÍK Igor
Co-authors:
1 ČÍŽEK Jan 1 DLOUHÝ Ivo
Institution:
1 Institute of Materials Science and Engineering – NETME centre, Faculty of Mechanical Engineering, Brno University of Technology (BUT), Brno, Czech Republic
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
1588-1593
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
288 views / 106 downloads
Abstract

In the last decade, multicomponent alloys arisen as new promising family of materials. The effect of milling parameters, namely milling balls size, milling speed and time on synthesis of inequiatomic AlCoCrFeNiTi0.5 mechanically alloyed (MA) powders in planetary ball mill were studied. Alloying behaviour, morphology, size and homogeneity of powders were observed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). During MA, a supersaturated Cr based solid solution with BCC structure was formed after 24 hours of milling, with significantly reduced grain size. It was revealed, that selection of milling conditions have a great influence on milled powders properties. In general softer milling condition result in decreased particle size and homogeneity.

Keywords: multicomponent alloy, mechanical alloying, powder metallurgy, milling

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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