Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Publicaciones del Grupo Español de Fractura

Listado de Publicaciones

Todas estas publicaciones se ofrecen de forma gratuita y son de libre difusión. También puedes descargar las actas completas».

EFFECT OF TEMPERATURE ON FATIGUE CRACK BEHAVIOUR IN DIFFERENT ALLOYS

F. S. Silva        

Anales de la Mecánica de la Fractura, nº 20 . 2003 . Pág. 231 -236
Ver (.pdf): GEF029

Resumen: This paper deals with the role of temperature in the behaviour of fatigue cracks in different alloys used in the aircraft industry. Three different alloys were studied: an aluminium alloy (Al 7175), a titanium alloy (Ti6Al4V), and an high strength steel (34CrNiMo6). Push-Pull tests (R = -1) were carried out at different temperatures, from low temperatures, (-100ºC), to somehow high temperatures (+ 400ºC), in air. At each temperature the shape of the da/dN-Kmax curve was assessed, as well as the initiation life, (a – Nf curve). The relation initiation life/propagation life was also assessed, (a – N/Nf curve). The effect of temperature in the referred subjects was discussed. The existence of a ductile-brittle fatigue transition temperature, parallel to the monotonic ductile-brittle transition temperature, although these transition temperatures are not the same, was assessed. Even on materials without a monotonic ductile-brittle transition temperature, a ductile-brittle fatigue transition temperature was detected.

LocalizaciónBenicassim

Mechanical Engineering Department, Minho University. Guimarães - Portugal






Enlaces directos

Últimas noticias

Contacto

Información general
info@gef.es

Administración
secretaria@gef.es

Cuotas y recibos
socios@gef.es