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Advanced TEM and SEM methods applied to 3D nano- and microstructural investigations of $Ni_{4}Ti_{3}$ precipitates in Ni-Ti (SMA)
Tijdschriftbijdrage - Tijdschriftartikel
Two different kinds of experimental approaches yielding three-dimensional structural information on metastable semi-coherent precipitates are demonstrated. By combining high-resolution images from two independent viewing directions a full description of the strain field surrounding a nano-sized Ni4Ti3 precipitate in Ni-Ti can be obtained. The principal axes and strains correlate well with the transformation strain of the observed R-phase transformation close to the precipitate. Using a slice-and-view procedure in a FIB/SEM dual-beam instrument, a three-dimensional voxel dataset is produced from which morphological and distributional information on the same precipitates can be obtained yielding new insight into the particular transformation paths of these alloys, relevant for their functional behaviour.
Tijdschrift: Diffusion and defect data : solid state data : part B : solid state phenomena
ISSN: 1012-0394
Volume: 172
Pagina's: 229 - 235
Jaar van publicatie:2011
Trefwoorden:A1 Journal article
BOF-keylabel:ja
Authors from:Higher Education
Toegankelijkheid:Closed