Title
Quantitative 3-D morphologic and distributional study of <tex>$Ni_{4}Ti_{3}$</tex> precipitates in a <tex>$Ni_{51}Ti_{49}$</tex> single crystal alloy Quantitative 3-D morphologic and distributional study of <tex>$Ni_{4}Ti_{3}$</tex> precipitates in a <tex>$Ni_{51}Ti_{49}$</tex> single crystal alloy
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Oxford ,
Subject
Physics
Engineering sciences. Technology
Source (journal)
Scripta materialia. - Oxford
Volume/pages
66(2012) :9 , p. 650-653
ISSN
1359-6462
ISI
000302425100010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The size, shape and distribution of Ni4Ti3 precipitates in Ni51Ti49 single crystals annealed under stress-free and &#12296;1 1 1&#12297;B2 compressive conditions are studied via focused ion beam/scanning electron microscopy slice-and-view. The precipitates in the stress-free material grow in autocatalytic pockets with larger size, lower number density, flatter shape and larger inter-particle distance than in the compressed material. Nevertheless, a new quantification method called water penetration reveals that, due to the precipitate alignment, martensite can grow more easily in the compressed material perpendicular to the compression direction.
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