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Typical Application In A Metallurgical Failure Analysis Laboratory

Published online by Cambridge University Press:  02 July 2020

Bruce L.Wong P.E.
Bruce L.Wong P.E.*
Affiliation:
Wong's Forensic and Metallurgical Engineers Inc., 30 SE 10th Ave., Portland, OR97214
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Metallurgical failure analysis is generally straight forward in many cases. However, there are times when it is difficult to really discern the fracture characteristics due to surface degradation, improper handling, or subsequent mechanical damage from improper planning.

Dr. Alan Tettleman, a founder of Failure Analysis and Associates, in San Jose, CA, once told me you can not properly conduct any product failure analysis without metallography, and especially without scanning electron microscopy. In many ways, I agree with him. There are obvious times, however, when various physical properties and deformations are apparent. Those are generally when a consultant is not required. As in your field, there are many references that assist the usage and implementation of the scanning electron microscope and energy dispersive x-ray analysis system. Many of the references introduce the procedure and some of the cautionary steps that should be taken in preparation of samples and in the interpretation of the fracture.

Type
Msa Technologists' Forum Symposium: Technology From The Pacific Northwest
Information
Microscopy and Microanalysis , Volume 5 , Issue S2: Proceedings: Microscopy & Microanalysis '99, Microscopy Society of America 57th Annual Meeting, Microbeam Analysis Society 33rd Annual Meeting, Portland, Oregon August 1-5, 1999 , August 1999 , pp. 1346 - 1347
Copyright
Copyright © Microscopy Society of America

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References

Regis M.N., Pelloux, The Analysis of Fracture Surfaces by Electron Microscopy,Metals Engineering Quarterly (1965)26.Google Scholar
Strauss, B.M. and Cullen, W.H. Jr., Ed., Fractography in Failure Analysis, STP 645, ASTM (1978)CrossRefGoogle Scholar
Brooks, Charlie R. and Choudhury, Ashok, Metallurgical Failure Analysis, McGraw-Hill (1993)Google Scholar
Gilbertson, L.N. and Zipp, RD., Ed., Fractography and Materials Science, ASTM STP 733 (1981)CrossRefGoogle Scholar
Boyer, Howard E., Ed., Failure Analysis and Prevention, Metals Handbook, 8th Edition, Vol. 10 (1975)Google Scholar