Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 582, Issue -, Pages 703-707Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.08.132
Keywords
Shape memory alloys (SMAs); Transmission electron microscopy (TEM); Martensite; Austenite; Hysteresis; Twinning
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Funding
- CONNEC Connecting Europe and China through Interuniversity Exchange, an Erasmus Mundus project
- FWO [G.0576.09N]
- Office Of Internatl Science &Engineering
- Office Of The Director [967140] Funding Source: National Science Foundation
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The microstructure of various compounds of the Ti-Ni-Au alloy system is investigated by transmission electron microscopy in relation with changing lattice parameters improving the compatibility conditions between austenite and martensite expressed by the lambda(2) = 1 equation based on the Geometrically NonLinear Theory of Martensite (GNLTM). Although local differences in microstructure are observed, when increasing the gold content compound twins are replaced by Type I twins, while twinned lamellar structures are replaced by untwinned plates and self-accommodating structures when lambda(2) = 1 is approached, all confirming the predictions of the GNLTM. (c) 2013 Elsevier B.V. All rights reserved.
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