Fatigue Crack Nucleation
Mostrando 13-14 de 14 artigos, teses e dissertações.
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13. Propriedades, microestruturas e mecanismos de nucleação de trincas por fadiga de dois aços inoxidaveis austeniticos utilizados como biomateriais
The ASTM F 138 stainless steel is current1y the most used material to produce orthopedic implants and a considerable nurnber of failure of temporary or perrnanent orthopedic implants occurs. Since some years the austenitic ISO 5832-9 stainless steel is also being used in implants fabrication as a replacement to the ASTM F 138 without a consistent research of
Publicado em: 2001
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14. FATIGUE CRACK NUCLEATION IN METALS*
One of the unanswered questions in the study of fatigue is how cracks nucleate at stresses far below the static fracture strength. Previous theories show possible qualitative mechanisms that may operate in a crystal at room and low temperatures but none provides a quantitiative theory of this phenomenon. We show here a quantitative mechanism of fatigue crack