Title
Advanced TEM investigations on Ni-Ti shape memory material: strain and concentration gradients surrounding <tex>$Ni_{4}Ti_{3}$</tex> precipitates Advanced TEM investigations on Ni-Ti shape memory material: strain and concentration gradients surrounding <tex>$Ni_{4}Ti_{3}$</tex> precipitates
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
s.l. , [*]
Subject
Physics
Source (book)
Integrative and interdisciplinary aspects of intermetallics: symposium proceedings of the Materials Research Society Fall Meeting, 2004, Boston, Mass.
ISBN
1-55899-790-3
ISI
000230340600053
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
Lattice deformations and concentration gradients surrounding Ni4Ti3 precipitates grown by appropriate annealing in a Ni51Ti49 B2 austenite matrix are determined by a combination of TEM techniques. Quantitative Fourier analysis of HRTEM images reveals a deformed nanoscale region with lattice deformations up to 2% while EELS and EDX indicate a Ni depleted zone up to 150 nm away from the matrix-precipitate interface.
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