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Fatigue Crack Growth Characteristics and Fracture Toughness of γ-Tial Base Alloy Sheet Material

Published online by Cambridge University Press:  22 February 2011

R. Behr ,
A. Wanner ,
H. Clemens  and
W. Glatz
R. Behr
Affiliation:
Max-Planck-Institut für Metallforschung, Seestrasse 92, D-70174 Stuttgart, Germany
A. Wanner
Affiliation:
Max-Planck-Institut für Metallforschung, Seestrasse 92, D-70174 Stuttgart, Germany
H. Clemens
Affiliation:
Plansee AG, Technology Center, A-6600 Reutte, Austria.
W. Glatz
Affiliation:
Plansee AG, Technology Center, A-6600 Reutte, Austria.
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Abstract

Room temperature tension-tension fatigue crack growth experiments were perfomed on single edge notch specimens of Ti-48Al-2Cr sheet materials produced on industrial scale with different microstructures ranging from near gamma to fully lamellar. Crack extension was monitored using a travelling optical microscope and a DC potential method. Crack paths and fracture surfaces were investigated by SEM. Fracture toughness data were determined by monotonic loading of previously fatigued samples.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 781
Copyright
Copyright © Materials Research Society 1995

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References

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