STUDY OF MICROSTRUCTURE AND PROPERTIES OF 316L STEEL AFTER SELECTIVE LASER MELTING

1 POPOVICH Anatoly
Co-authors:
1 SUFIIAROV Vadim 1 BORISOV Evgenii 1 POLOZOV Igor 1 MASAYLO Dmitry
Institution:
1 Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia, evgenii.borisov@incloud.com
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
659-663
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
96 views / 25 downloads
Abstract

Additive technologies provide engineers with an innovative approach for design and manufacture of parts. The development of additive manufacturing technologies, such as selective laser melting, allows making metal products by melting the powder and obtaining a continuous solid-phase structure. The paper presents the results of study of selective laser melting process of steel 316L powder. Morphology and particle size distribution of the initial powder was shown. The chemical composition, microstructure and phase composition of the compact samples obtained by selective laser melting technology before and after heat treatment was investigated. The results show that the density of the samples was close to 100 %. Analysis of the microstructure of the samples before heat treatment shows a high crystallization speed, leading to the formation of the fine structure. Mechanical tensile properties for the samples before and after heat treatment were measured.

Keywords: Selective laser melting, stainless steel, 316L, powder metallurgy, additive manufacturing

© 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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