Valuation of mechanical properties and microstructural characterization of ASTM F75 Co-Cr alloy obtained by Selective Laser Melting (SLM) and casting techniques
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Advances in processes using the powder metallurgy techniques are making this
technology competitive compared to the other traditional manufacturing processes, especially in
medicine area. The additive rapid prototyping technique – selective laser melting (SLM) was
applied in a biomaterial of CoCrMoFe alloy (ASTM F75), to study the mechanical properties and
microstructural characterization in comparison between the conventional technique – casting. The
gas atomized powder was investigated by their physical (as apparent density, bulk density and flow
rate) and the chemical properties. The powder was analyzed using scanning electron microscope
with energy-dispersed X-ray spectroscopy (SEM-EDS) and X-ray fluorescence. Specimens of
standard samples were manufactured using these techniques to evaluate the mechanical properties
as uniaxial tensile (yield strength, rupture tensile and elongation), transverse rupture strength and
the micro hardness. The mechanical properties showed higher values in the SLM specimens than
the casting specimens. Before the mechanical tests the specimens were examined using optical
microscope (OM) and SEM-EDS. The micrographs revealed a microstructure with finer
morphology in the SLM technique and the dendrites in the casting technique.
Como referenciar
MERGULHAO, MARCELLO V.; PODESTA, CARLOS E.; NEVES, MAURICIO D.M. das. Valuation of mechanical properties and microstructural characterization of ASTM F75 Co-Cr alloy obtained by Selective Laser Melting (SLM) and casting techniques. Materials Science Forum, v. 899, p. 323-328, 2017. DOI: 10.4028/www.scientific.net/MSF.899.323. Disponível em: http://repositorio.ipen.br/handle/123456789/27887. Acesso em: 26 Mar 2026.
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.