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Effects of Aged Conditions on the Fracture Surface Fractal Dimension and Mechanical Behavior of an Austenitic Stainless Steel

Published online by Cambridge University Press:  02 July 2020

O. A. Hilders ,
A. Quintero ,
L. Berrio ,
R. Caballero ,
L. Sáenz ,
N. Peña  and
M. Ramos
O. A. Hilders
Affiliation:
School of Metallurgical Engineering and Materials Science, Central University of Venezuela, Apartado Postal, 47514Venezuela.
A. Quintero
Affiliation:
School of Metallurgical Engineering and Materials Science, Central University of Venezuela, Apartado Postal, 47514Venezuela.
L. Berrio
Affiliation:
School of Metallurgical Engineering and Materials Science, Central University of Venezuela, Apartado Postal, 47514Venezuela.
R. Caballero
Affiliation:
School of Metallurgical Engineering and Materials Science, Central University of Venezuela, Apartado Postal, 47514Venezuela.
L. Sáenz
Affiliation:
Department of Materials and Fabrication Processes, University of Carabobo, Apartado Postal, 3155, Valencia 2002, Venezuela.
N. Peña
Affiliation:
School of Metallurgical Engineering and Materials Science, Central University of Venezuela, Apartado Postal, 47514Venezuela.
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Extract

There have been several attempts to find a relation between the fractal morphology of the fracture surfaces and the mechanical properties of engineering materials., although the current resuls are inconclusive. If there are correlations between the fractal dimension and such properties, this parameter could be very useful to predict them and to improve the resistance to fracture. The main part of the investigations concerned with the fractal geometry and fracture behavior concentrate on the relations between roughness and fracture toughness . In the present work, the effects of thermal aging at 850°C on the fracture topography developed during the rupture in tension at room temperature of a 304 type stainless steel and their relation with the strength and ductility, were studied using the fractal geometry approach.

Type
Scanning Electron Microscopy
Information
Microscopy and Microanalysis , Volume 6 , Issue S2: Proceedings: Microscopy & Microanalysis 2000, Microscopy Society of America 58th Annual Meeting, Microbeam Analysis Society 34th Annual Meeting, Microscopical Society of Canada/Societe de Microscopie de Canada 27th Annual Meeting, Philadelphia, Pennsylvania August 13-17, 2000 , August 2000 , pp. 768 - 769
Copyright
Copyright © Microscopy Society of America

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References

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