Fatigue resistance of a laser-treated biomaterial
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2022
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BRAZIL MRS MEETING, 20th
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Resumo
One of the main characteristics required for biomaterials is its surface finish. The same
metallic implant may have a varied surface finish; from polishing, for regions where there is
mobility, to high roughness to ensure greater adhesion. The laser beam has been used for
surface treatments such as hardening and marking, for example. Another application of the
laser beam is the texturing of surfaces. The objective of this work was to characterize the
fatigue resistance, in the tensile-traction regime, of samples of ISO 5832-1 austenitic
stainless steel, treated by an Yb doped optical fiber laser beam. For comparison purposes,
samples without laser marking treatment were also evaluated. The markings consisted of
the recording of the surfaces of the specimens by generating parallel and juxtaposed
characters. The results indicated an increase in the average roughness in the laser-marked
areas, which become regions of stress concentration, favoring the appearance and
propagation of cracks that trigger fatigue failure. The samples treated by laser showed
lower fatigue resistance compared to the untreated ones.
Como referenciar
PIERETTI, EURICO F.; CORREA, OLANDIR V.; NEVES, MAURICIO M. das; ANTUNES, RENATO A. Fatigue resistance of a laser-treated biomaterial. In: BRAZIL MRS MEETING, 20th, September 25-29, 2022, Foz do Iguaçu, PR. Abstract... São Carlos, SP: Aptor Software, 2022. Disponível em: http://repositorio.ipen.br/handle/123456789/33569. Acesso em: 20 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.