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Fatigue Properties and Design Criteria of a Gamma Titanium Aluminide Alloy

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Abstract:

The fatigue properties of a Ti-48Al-2Cr-2Nb alloy obtained by electron beam melting (EBM) with a patented process has been examined by conducting high cycle fatigue tests performed at different loading ratios both at room temperature and at high temperatures, comparable to those experienced by the components during service. Some tests have been conducted in the superlong life regime well exceeding 10 million cycles, highlighting individual fatigue characteristics of the studied TiAl alloy.

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Periodical:

Key Engineering Materials (Volume 465)

Pages:

531-534

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.465.531

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Online since:

January 2011

Authors:

Stefano Beretta, Mauro Filippini, Luca Patriarca, Giuseppe Pasquero, Silvia Sabbadini

Keywords:

Fatigue Crack Propagation, Gamma Titanium Aluminides, High Cycle Fatigue (HCF)

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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