Phase engineering and supercompatibility of shape memory alloys

Hanlin Gu, Lars Bumke, Christoph Chluba, Eckhard Quandt, Richard D. James

Research output: Contribution to journalReview articlepeer-review

42 Scopus citations

Abstract

In recent years examples of unprecedented functional and structural fatigue resistance and lowered hysteresis in shape memory alloys have been achieved by combining conditions of supercompatibility between phases with suitable grain size and a favorable array of fine precipitates. We collect, review and compare these examples to elucidate the relative roles of these factors, especially in the case of the more demanding stress-induced phase transformations, and we pose key open questions. The control of these factors lends itself to systematic alloy development. Taken together, these results point to significant opportunities to discover improved shape memory alloys as well has new reversible transforming multiferroics.

Original languageEnglish (US)
Pages (from-to)265-277
Number of pages13
JournalMaterials Today
Volume21
Issue number3
DOIs
StatePublished - Apr 2018

Bibliographical note

Funding Information:
The work from the University of Minnesota was supported by AFOSR ( FA9550-15-1-0207 ), NSF ( DMREF-1629026 ), ONR ( N00014-14-1-0714 ) and the MURI program ( FA9550-12-1-0458 , FA9550-16-1-0566 ). The work at the University of Kiel was supported by the Deutsche Forschungsgemeinschaft (DFG) via the Priority Program 1599 and the Reinhart Koselleck Project QU 146/23-1. The authors acknowledge fruitful discussions with Jake Steiner and Manfred Wuttig (University of Maryland), with Torben Dankwort and Lorenz Kienle (University of Kiel) and technical support by Rodrigo Lima de Miranda (Acquandas GmbH Kiel). HG and RDJ are pleased to acknowledge the support of Medtronic Corp, via a gift to the University of Minnesota.

Publisher Copyright:
© 2017 Elsevier Ltd

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