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Nondestructive Evaluation of Fatigue in Titanium Alloys

Published online by Cambridge University Press:  10 February 2011

H. Rösner ,
N. Meyendorf ,
S. Sathish  and
T.E. Matikas
H. Rösner
Affiliation:
Fraunhofer Institute Nondestructive Testing, Universität 37, 66123 Saarbrücken, Germany
N. Meyendorf
Affiliation:
Fraunhofer Institute Nondestructive Testing, Universität 37, 66123 Saarbrücken, Germany
S. Sathish
Affiliation:
Center for Materials Diagnostics, University of Dayton, Dayton OH 45469-0121
T.E. Matikas
Affiliation:
Former Director of the Center for Materials Diagnostics, University of Dayton
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Abstract

Dissipated heat has been measured by thermographic technique during fatigue experiments on Ti-6AI-4V. Surface temperature of the specimen was found sensitive to the amount of fatigue damage accumulated in the material. An increased heat dissipation due to fatigue can be related to continuous change in the microstructure (increased dislocation density, stacking faults etc.) of the material. A method based on passive thermography can be proposed to monitor damage accumulation in Ti-6Al-4V due to cyclic loading.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 591 , 1999 , 73
Copyright
Copyright © Materials Research Society 2000

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References

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