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The influence of texture on the shape-memory effect in polycrystals

Shu, Y. C. and Bhattacharya, K. (1998) The influence of texture on the shape-memory effect in polycrystals. Acta Materialia, 46 (15). pp. 5457-5473. ISSN 1359-6454.

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A model is developed to show that texture is a crucial factor in determining the shape-memory effect in polycrystals. In particular, it is established that texture is the reason why the strains recoverable in Ti–Ni are so much larger than those in Cu-based shape-memory alloys in rolled, extruded and drawn specimens. Further, it is shown that both these materials recover relatively small strains in sputter-deposited thin films due to unfavorable texture. It is found that even the qualitative behavior of combined tension–torsion can critically depend on the texture. The results are in good agreement with experimental observations. Finally, textures are suggested for improved shape-memory effect.

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Bhattacharya, K.0000-0003-2908-5469
Additional Information:© 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. Received 29 October 1997; accepted 18 May 1998. We are grateful for helpful discussions with J. Beyer, R. V. Kohn and L. Zhao. This work was partially supported by grants from Air Force Office of Scientific Research through F49620-95-1-0109 and National Science Foundation through CMS-9457573.
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Air Force Office of Scientific Research (AFOSR)F49620-95-1-0109
Issue or Number:15
Record Number:CaltechAUTHORS:20131007-095506660
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41702
Deposited By: Tony Diaz
Deposited On:07 Oct 2013 17:26
Last Modified:03 Oct 2019 05:51

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