Mechanical properties and microstructural characterization of Cobalt-Chromium (CoCr) obtained by casting and Selective Laser Melting (SLM)
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2017
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Materials Science Forum
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The aim of this study is the consolidation of Cobalt-Chromium (CoCr) alloy powder
using the additive manufacturing - selective laser melting (SLM) and the investment casting
techniques. The research of this study has been applied to their biomaterial applied to development
of prosthesis and dental implants. The gas atomized powder are spherical (mean diameter equal to
42,74 μm) and was analyzed by their physical and chemical properties. The microstructure of the
powder and specimens was evaluated using optical microscope (OM) and scanning electron
microscope with energy-dispersed X-ray spectroscopy (SEM-EDS). The mechanical properties
were evaluated of standard samples using a tensile (yield strength, maximum tensile, rupture tensile
and elongation), three point bending (transverse rupture strength) and micro hardness tests. The
mechanical results indicate higher values for the SLM than casting specimens. The micrographs
revealed a characteristic morphology of laser been used in the SLM technique and the dendrites in
the casting technique. The microstructure of samples made by SLM is thinner than the samples
obtained in the cast.
Como referenciar
MERGULHAO, MARCELLO V.; PODESTA, CARLOS E.; NEVES, MAURICIO D.M. das. Mechanical properties and microstructural characterization of Cobalt-Chromium (CoCr) obtained by casting and Selective Laser Melting (SLM). Materials Science Forum, v. 899, p. 534-539, 2017. DOI: 10.4028/www.scientific.net/MSF.899.534. Disponível em: http://repositorio.ipen.br/handle/123456789/27888. Acesso em: 11 May 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.