Direct comparison between Co-28Cr-6Mo alloy prepared by selective laser melting and traditional investment casting

0546270 - FZÚ 2022 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Roudnická, Michaela - Bigas, J. - Šreibr, V. - Paloušek, D. - Vojtěch, D.
Direct comparison between Co-28Cr-6Mo alloy prepared by selective laser melting and traditional investment casting.
IOP Conference Series: Materials Science and Engineering. Vol. 1178. Bristol: IOP Publishing Ltd, 2021, č. článku 012046. ISSN 1757-8981.
[International Conference on Recent Trends in Structural Materials (COMAT 2020) /6./. Plzeň (CZ), 30.09.2020-04.10.2020]
Institucionální podpora: RVO:68378271
Klíčová slova: Co-28Cr-6Mo * selective Laser Melting * investment casting * microstructure * mechanical properties
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
https://iopscience.iop.org/article/10.1088/1757-899X/1178/1/012046/pdf

In this contribution, we bring a direct comparison between the microstructures and mechanical properties of Co-28Cr-6Mo alloy prepared by SLM and investment casting. Due to significant differences in microstructure fineness and phase composition, SLM is revealed to increase not only material strength and hardness but concurrently plasticity. As a result of rapid solidification during SLM, very fine cellular microstructure with Mo microsegregation at cell walls is formed without the occurrence of any secondary phases. The distinctive microstructure of the additively manufactured alloy can be expected to be the cause of many other variances in the material behaviour.
Trvalý link: http://hdl.handle.net/11104/0322893