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Comparative Analysis of the Effects of Severe Plastic Deformation and Thermomechanical Training on the Functional Stability of Ti50.5Ni24.5Pd25 High-Temperature Shape Memory AlloyWe compare the effectiveness of a conventional thermomechanical training procedure and severe plastic deformation via equal channel angular extrusion to achieve improved functional stability in a Ti50.5Ni24.5Pd25 high-temperature shape memory alloy. Thermomechanical testing indicates that both methods result in enhanced shape memory characteristics, such as reduced irrecoverable strain and thermal hysteresis. The mechanisms responsible for the improvements are discussed in light of microstructural findings from transmission electron microscopy.
Document ID
20110011267
Acquisition Source
Glenn Research Center
Document Type
Reprint (Version printed in journal)
Authors
Atli, K. C.
(Texas A&M Univ. College Station, TX, United States)
Karaman, I.
(Texas A&M Univ. College Station, TX, United States)
Noebe, R. D.
(NASA Glenn Research Center Cleveland, OH, United States)
Maier, H. J.
(Paderborn Univ. Germany)
Date Acquired
August 25, 2013
Publication Date
October 30, 2010
Publication Information
Publication: Scripta Materialia
Publisher: Acta Materialia, Inc.
Volume: 64
Issue: 4
ISSN: 1359-6462
Subject Category
Mechanical Engineering
Report/Patent Number
E-17792
Funding Number(s)
CONTRACT_GRANT: NNX07AB56A
CONTRACT_GRANT: NSF IIP-0832545
WBS: WBS 561581.02.08.03.15.13
Distribution Limits
Public
Copyright
Other

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