Title
Advanced electron microscopy characterisation of important precipitation and ordering phenomena in shape memory systems Advanced electron microscopy characterisation of important precipitation and ordering phenomena in shape memory systems
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Subject
Physics
Source (journal)
Shape memory and superelasticity
Volume/pages
1(2015) :1 , p. 78-84
ISSN
2199-384X
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The present paper discusses some important aspects of precipitation and ordering in alloy systems that show a martensitic transformation and can or are used as shape memory or superelastic metallic systems. The precipitates are investigated by a variety of conventional and advanced electron microscopy techniques, including atomic resolution, 3D slice-and-view, energy loss spectroscopy etc. Depending on the system, such secondary phases can decrease the probability of a displacive transformation by changing the phase stability in the system, such as in the case of NiAl or NiTiPd, or can mechanically hinder the passage of the transformation interface, as in NiTiNb. On the other hand, properly controlling the nucleation and growth of some precipitates can strongly improve the properties of some types of materials, as is the case for the well-known Ni4Ti3 precipitates.
E-info
https://repository.uantwerpen.be/docman/iruaauth/56704d/4accfc6127d.pdf
Full text (open access)
https://repository.uantwerpen.be/docman/irua/647081/10807.pdf
Handle