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Licensed Unlicensed Requires Authentication Published by De Gruyter May 31, 2013

Damage fluctuations in creep deformed copper studied with synchrotron X-ray microtomography

  • Ramin Abbasi , Loic Renversade , Krzysztof Dzieciol , András Borbély and Anke R. Kaysser-Pyzalla


Damage localization during power law creep of copper has been investigated in situ with synchrotron X-ray microtomography. The analysis of the area fraction of cavities corresponding to a given material slice has revealed that damage localization begins relatively early at half of the creep lifetime. The amplitude of the maximum fluctuation shows parabolic behavior as a function of mean void volume fraction. Existing models of damage evolution underpredict the amount of real damage and overpredict power-law creep life-time.

* Correspondence address András Borbély, 158 cours Fauriel, 4200 Saint-Etienne, France, Tel.: +33 477 42 02 79, Fax: +33 477 42 00 01, E-mail:


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Received: 2011-7-13
Accepted: 2011-11-1
Published Online: 2013-05-31
Published in Print: 2012-02-01

© 2012, Carl Hanser Verlag, München

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