Hostname: page-component-77c89778f8-m8s7h Total loading time: 0 Render date: 2024-07-19T08:00:55.938Z Has data issue: false hasContentIssue false
  • English
  • Français

Nondestructive detection of fatigue cracks in PM 304 stainless steel by internal friction and elasticity

Published online by Cambridge University Press:  03 March 2011

S.M. McGuire ,
M.E. Fine ,
O. Buck  and
J.D. Achenbach
S.M. McGuire
Affiliation:
Department of Materials Science and Engineering, Center for Quality Engineering and Failure Prevention, Northwestern University, Evanston, Illinois 60208-3020
M.E. Fine
Affiliation:
Department of Materials Science and Engineering, Center for Quality Engineering and Failure Prevention, Northwestern University, Evanston, Illinois 60208-3020
O. Buck
Affiliation:
Ames Laboratory, Iowa State University, Ames, Iowa 50011-3112
J.D. Achenbach
Affiliation:
Center for Quality Engineering and Failure Prevention, Northwestern University, Evanston, Illinois 60208-3020
Get access

Abstract

A resonant frequency mechanical vibration method was used to nondestructively detect fatigue crack initiation in notched 304 stainless steel samples prepared by powder metallurgy. This method allowed the determination of an effective elastic modulus and the direct measurement of internal friction. Changes in the modulus and internal friction were found to correlate well with the presence of 50 μm long fatigue cracks. The length of the through cracks initiated at the notch was measured using surface replicas, which were examined in a scanning electron microscope. Small crack growth rate data were also obtained and plotted versus the stress intensity factor. The crack growth rates were compared with long crack data performed on compact tension samples of this material. The short cracks grew at intensity factors below the long crack threshold stress intensity factor.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 9 , September 1993 , pp. 2216 - 2223
Copyright
Copyright © Materials Research Society 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Murakami, Y., Stress Intensity Factors Handbook (Pergamon Press, Oxford, 1987), Vol. 1, pp. 255–257.Google Scholar
2Murakami, Y., Stress Intensity Factors Handbook (Pergamon Press, Oxford, 1987), Vol. 1, pp. 78–80.Google Scholar
3Fine, M. E., Symposium on Determination of Elastic Constants (American Society for Testing Materials, Philadelphia, PA), ASTM STP 129, 43 (1952).CrossRefGoogle Scholar
4Siegal, S. and Quimby, S. L., Phys. Rev. 49, 663 (1936).CrossRefGoogle Scholar
5Mei, Z. and Morris, J. W. Jr., Metall. Trans. 21A, 3137 (1990).CrossRefGoogle Scholar
6McEvily, A. J. and Gonzalez Velazquez, J. L., Metall. Trans. 23A, 2211 (1992).CrossRefGoogle Scholar
7Atanasiu, N. E. and Irmescu, B. R., Mechanical Behavior of Materials IV (Pergamon Press, Oxford, 1983), Vol. 2, p. 841.Google Scholar
8Papadakis, E. P., Lynnworth, L. C., Fowler, K. A., and Carnevale, E. H., J. Acoust. Soc. Am. 52, 850 (1972).CrossRefGoogle Scholar
9Ritchie, R. O., Int. Met. Rev. Nos. 5 and 6, 205 (1979).Google Scholar
10Budiansky, B. and O'Connell, R. J., Int. J. Solid Structures 12, 81 (1976).CrossRefGoogle Scholar
11Angel, Y. C. and Achenbach, J. D., J. Appl. Mech. 52, 33 (1985).CrossRefGoogle Scholar
12Joshi, N. R. and Green, R. E. Jr., Eng. Fract. Mech. 4, 577 (1972).CrossRefGoogle Scholar