Failure analysis of metallic orthopedic implant for total knee replacement
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2020
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Materials Science Forum
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Fractures resulting from wear and fatigue process have been identified as the main causes
of failure in biomaterials, especially in implants that act in place of bone or other hard tissue, as
they are subject to conditions involving severe cyclic loadings. In biomaterialscase, the types of
failures mentioned above must also be evaluated under the effect of degradation or corrosion, due to
the direct contact with body fluids. The present research analyzed the fatigue induced by corrosion
fracture of an orthopaedic implant for total knee replacementproduced with an austenitic ASTM
F138 stainless steel. The morphology, compositions of the interfaces and subsequent corrosive
pitting were characterized by stereoscopy and scanning electron microscopy (SEM) coupled with
energy dispersive spectroscopy (EDS). Stress concentration, inclusions and high carbon levels were
the main reasons of failure.
Como referenciar
PIERETTI, EURICO F.; LEIVAS, TOMAZ P.; PILLIS, MARINA F.; NEVES, MAURICIO D.M. Failure analysis of metallic orthopedic implant for total knee replacement. Materials Science Forum, v. 1012, p. 471-476, 2020. DOI: 10.4028/www.scientific.net/MSF.1012.471. Disponível em: http://200.136.52.105/handle/123456789/31634. Acesso em: 25 Apr 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.