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In-situ investigation of strain relaxation in an Al/Si–MMC using high energy synchrotron radiation

  • Anke R. Pyzalla EMAIL logo , Björn Reetz , Alain Jacques , Jean-Pierre Feiereisen , Olivier Ferry , Thomas Buslaps and Walter Reimers
Published/Copyright: February 8, 2022
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Abstract

Thermal and mechanical loading induce phase specific strains/stresses in MMCs. At elevated temperature part of the phase-specific strains/stresses relax. The relaxation of the phase-specific strains/stresses is determined by in-situ experiments using white high-energy synchrotron radiation. The experiments reveal that such time-resolved strain measurements are possible and that short-time phenomena can be accessed using white high-energy synchrotron radiation. The elastic strain relaxation behavior is similar for all lattice planes accessed. The influence of the temperature on the characteristic relaxation time is determined. The characteristic relaxation time appears to be independent of the amount of plastic deformation the sample suffers before strain/stress relaxation.


Univ.-Prof. Dr.-Ing. Anke Rita Pyzalla TU Wien Institute for Materials Science and Testing Karlsplatz 13-308, A-1040 Wien, Austria Tel.: +43 1 58801 30870 (secr.) –30831 (direct) Fax: +43 1 58801 30897

Dedicated to Professor Dr. Dr. h. c. Franz Jeglitsch on the occasion of his 70th birthday


  1. The authors acknowledge the provision of beamtime and equipment by the ESRF, Grenoble, France and the support by the beamline personnel. B. R., A. P. and W. R. also acknowledge funding by the Deutsche Forschungsgemeinschaft (DFG).

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Received: 2004-03-01
Accepted: 2004-04-01
Published Online: 2022-02-08

© 2004 Carl Hanser Verlag, München

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