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Cyclic deformation behavior of deep rolled as-quenched aluminium alloy AA6110 at elevated temperatures

  • Patiphan Juijerm and Igor Altenberger
Published/Copyright: May 23, 2013
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Abstract

The as-quenched (solution-heat-treated) aluminium wrought alloy AA6110 (Al – Mg – Si – Cu) was mechanically surface treated (deep rolled) at room temperature. The deep rolled as-quenched AA6110 was cyclically deformed at room and elevated temperatures up to 250 °C using stress-controlled push-pull fatigue tests. Cyclic deformation behavior and Wöhler curves of the deep rolled as-quenched AA6110 have been investigated and compared to the polished condition as a reference. The effect of static/dynamic precipitation occurring during fatigue at elevated temperatures was analyzed and discussed. The stability of residual stresses as well as work hardening at elevated temperature was investigated using X-ray diffraction methods. Finally, from the S/N data, a borderline describing the effectiveness of deep rolling for different loading combinations in a stress amplitude – temperature diagram was established.


* Correspondence address, Dr.-Ing. Patiphan Juijerm, Kasetsart University, Department of Materials Engineering, 50 Phaholyothin Rd., Jatujak, Bankok 10900, Thailand, Tel.: +662 942 8555, Fax: +662 955 1811, E-mail:

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Received: 2006-10-9
Accepted: 2007-1-24
Published Online: 2013-05-23
Published in Print: 2007-06-01

© 2007, Carl Hanser Verlag, München

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