Sociedad Española de Integridad Estructural
Grupo Español de Fractura

Sociedad Española de Integridad Estructural
Grupo Español de Fractura

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J. M. Badia Pérez        

Anales de la Mecánica de la Fractura, nº 1 . 1984 . Pág. 98 -98
Ver (.pdf): Anales01-016

Resumen: The research on fracture at present being developed by the Materials Testing Laboratory (Metallurgy Department) is focused on the study of the correlation between the morphology of fracture surfaces and the type and level of stresses applied to the metal. This research is being carried out on several aluminium, magnesium and titanium' alloys. A great number of test specimens of these alloys are subjected to tension and impact tests and also to fatigue tests at various stress levels (R = 0,1). The fracture surfaces of the specimens are analyzed by scanning electron microscopy, relating the microfractographic characteristics observed with chemical composition, microstructure and heat treatment f the alloy, and also with the type of te'st and the level of stress applied to failure. The aim of this work is to obtain'a systematize of the different microfractographic characteristics that can appear on frcture surfaces of alloys for aeronautical applications and to correlate them with the stresses reponsible for failure. The research will result in greater knowledge of crack growth processes in these alloys and will provide very useful data fo~ obtaining maximum information from the fracture surfaces of elements which'have failed in service, in order to find out the type of stress responsible for the failure.


Escuela Técnica Superior de Ingenieros Aeronaúticos, Madrid.

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