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  Elevated Temperature, In Situ Micromechanical Characterization of a High Temperature Ternary Shape Memory Alloy

Wheeler, J. M., Niederberger, C., Raghavan, R., Thompson, G. B., Weaver, M. L., & Michler, J. (2015). Elevated Temperature, In Situ Micromechanical Characterization of a High Temperature Ternary Shape Memory Alloy. JOM-Journal of the Minerals Metals & Materials Society, 67(12), 2908-2913. doi:10.1007/s11837-015-1627-x.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-BAAB-D Version Permalink: http://hdl.handle.net/21.11116/0000-0001-BAAF-9
Genre: Journal Article

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 Creators:
Wheeler, Jeffrey M.1, 2, Author              
Niederberger, Christoph3, Author              
Raghavan, Rejin1, 4, Author              
Thompson, Gregory B.5, Author              
Weaver, Mark L.5, Author              
Michler, Johann6, Author              
Affiliations:
1Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, Thun, Switzerland, ou_persistent22              
2Laboratory for Nanometallurgy, Department of Materials Science, ETH Zürich, Zurich, Switzerland, ou_persistent22              
3Laboratory for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology, Feuerwerkerstrasse 39, Thun, Switzerland, persistent22              
4Synthesis of Nanostructured Materials, Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863403              
5Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL, USA, persistent22              
6Empa – Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Thun, Switzerland, persistent22              

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Free keywords: Precipitation (chemical), Austenite phase; Elevated temperature; High temperature; Micromechanical characterization; Plastic regimes; Pseudoelastic behaviors; Residual strains; Transformation temperatures, Shape memory effect
 Abstract: The microthermomechanical behavior of a precipitation-hardenable Ni-48Ti-25Pd (at.) shape memory alloy has been investigated as a function of temperature. Micropillars were fabricated within a large 〈145〉-oriented grain and compressed in situ in the SEM at elevated temperatures corresponding to the martensite and austenite phase transformation temperatures. The precipitation-strengthened alloys exhibited stable pseudoelastic behavior with little or no residual strains when near the transformation temperatures. In the plastic regime, slip was observed to occur via pencil glide, circumventing the fine scale precipitates along multiple slip planes. © 2015, The Minerals, Metals Materials Society.

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Language(s): eng - English
 Dates: 2015-12-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1007/s11837-015-1627-x
BibTex Citekey: Wheeler20152908
 Degree: -

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Title: JOM-Journal of the Minerals Metals & Materials Society
  Abbreviation : JOM-J. Miner. Met. Mater. Soc.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Warrendale, PA, USA : The Minerals, Metals and Materials Society (TMS)
Pages: - Volume / Issue: 67 (12) Sequence Number: - Start / End Page: 2908 - 2913 Identifier: ISSN: 1047-4838
CoNE: /journals/resource/954926962934