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Fractal Analysis of the Microstructure of Aisi 304 Steel.

Published online by Cambridge University Press:  10 February 2011

M. Hinojosa ,
V. Trejo  and
U. Ortiz
M. Hinojosa
Affiliation:
DIMAT, Facultad de Ingeniería Mecánica y E1éctrica, Universidad Autónoma de Nuevo León, A.P. 076 suc. F, 66450. San Nicolás de los Garza, N.L. México.
V. Trejo
Affiliation:
DIMAT, Facultad de Ingeniería Mecánica y E1éctrica, Universidad Autónoma de Nuevo León, A.P. 076 suc. F, 66450. San Nicolás de los Garza, N.L. México.
U. Ortiz
Affiliation:
DIMAT, Facultad de Ingeniería Mecánica y E1éctrica, Universidad Autónoma de Nuevo León, A.P. 076 suc. F, 66450. San Nicolás de los Garza, N.L. México.
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Abstract

The present work reports the results of fractal analysis of the grain boundaries of AISI 304 stainless steel. Microstructure in the non deformed condition is compared against microstructure with 50% tensile strain. Observations were made by optical microscopy, magnifications used were 50, 100, 200, 400, and 1000x. Measurements were made over digitized images using image analysis. Fractal dimension of the grain boundaries were obtained using Richardson plots of perimeter against yardstick length. Our results agree well with reported values for different natural fractal curves. We found that, in general, grains exhibit two different fractal dimensions: one structure dimension that gives information about the morfology of the grain and one texture dimension which accounts for the fine details of the grain boundary.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 407: Symposium M – Disordered Materials and Interfaces-Fractals, structure and Dynamics , 1995 , 411
Copyright
Copyright © Materials Research Society 1996

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References

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