Paper Title:
Advanced TEM and SEM Methods Applied to 3D Nano- and Microstructural Investigations of Ni4Ti3 Precipitates in Ni-Ti (SMA)
  Abstract

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.

  Info
Periodical
Solid State Phenomena (Volumes 172-174)
Edited by
Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson
Pages
229-235
DOI
10.4028/www.scientific.net/SSP.172-174.229
Citation
D. Schryvers, W. Tirry, S. S. Cao, "Advanced TEM and SEM Methods Applied to 3D Nano- and Microstructural Investigations of Ni4Ti3 Precipitates in Ni-Ti (SMA)", Solid State Phenomena, Vols. 172-174, pp. 229-235, 2011
Online since
June 2011
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Price
$32.00
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