Title
Transmission electron microscopy investigation of microstructures in low-hysteresis alloys with special lattice parameters Transmission electron microscopy investigation of microstructures in low-hysteresis alloys with special lattice parameters
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Oxford ,
Subject
Physics
Engineering sciences. Technology
Source (journal)
Scripta materialia. - Oxford
Volume/pages
60(2009) :5 , p. 293-296
ISSN
1359-6462
ISI
000262553300007
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A sharp drop in hysteresis is observed for shape memory alloys satisfying the compatibility condition between austenite and martensite, i.e. ë2 = 1, where ë2 is the middle eigenvalue of the transformation strain matrix. The present work investigates the evolution of microstructure by transmission electron microscopy as the composition of the Ti50Ni50−xPdx system is systemically tuned to achieve the condition ë2 = 1. Changes in morphology, twinning density and twinning modes are reported along with twinless martensite and exact austenitemartensite interfaces.
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