Overview: Recent Progress in Three-Dimensional Atom Probe Instruments and Applications

Cerezo, A.; Clifton, P. H.; Lozano-Pérez, Sergio; Panayi, Peter; Sha, Gang; Smith, George Davey

doi:10.1017/s143192760707095x

Cited by 46 publications

(23 citation statements)

References 43 publications

(12 reference statements)

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“…Major breakthroughs in the design of atom probe tomography (APT) through the past decade have enabled an unprecedented broadening of the field-of-application of the technique [1][2].…”

Section: Introductionmentioning

confidence: 99%

Some aspects of the field evaporation behaviour of GaSb

Müller¹,

Saxey²,

Smith³

et al. 2011

Ultramicroscopy

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Molecular or cluster ions are often observed in the atom probe microanalysis of III-V compound semiconductors. Here, in-depth data analysis of a series of experiments on GaSb reveals strong variations in the mass spectrum, cluster ion appearance and multiplicity of the detector-events with respect to the effective electric field at the specimen surface. These variations are discussed in comparison with Al 6XXX series alloys and pure W and it is proposed that they may originate from field-dissociation of molecular ions, which might contribute to compositional inaccuracies. Abstract 2

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“…Major breakthroughs in the design of atom probe tomography (APT) through the past decade have enabled an unprecedented broadening of the field-of-application of the technique [1][2].…”

Section: Introductionmentioning

confidence: 99%

Some aspects of the field evaporation behaviour of GaSb

Müller¹,

Saxey²,

Smith³

et al. 2011

Ultramicroscopy

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“…This allows very accurate local compositional information to be gained and has also been used in the past to examine microstructural features such as precipitate morphology, solute segregation to phase and grain boundaries, and dislocation structures. [8][9][10][11] The principle two aims of the APT were to compare the composition of the matrix of the three alloys and to investigate solute clustering in the matrix.…”

Section: Introductionmentioning

confidence: 99%

Atom Probe Tomography of Solute Distributions in Mg-Based Alloys

Stanford

Sha

Fontaine

et al. 2009

Metall Mater Trans A

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Atom probe tomography (APT) has been carried out on three magnesium-based alloys: M1 (Mg-1 wt pct Mn), AZ31(Mg-3 pct Al-1 pct Zn), and ME10 (Mg-1 pct Mn-0.4 pct misch metal). The aims of this experiment were to measure the composition of the matrix and to investigate solute clustering in the matrix of the three different alloys. For AZ31, the matrix composition was variable but close to the bulk composition. For ME10 and M1, the matrix was depleted in alloying additions, with the remainder residing in precipitates. Most alloying additions were found to exhibit clustering to some extent, with misch metal having the strongest partitioning behavior to clusters. Solute clusters did not appear to affect mechanical twinning. It has been proposed that the clustering behavior of misch metal contributes to its ability to modify the recrystallization texture.

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“…For example, a grain boundary in a pressure vessel steel (Fe-0.5at.%Cu-1.5at.%Ni-1.5at.%Mn-0.75at.%Si) aged at 365ºC for 49,800 h was examined by the 3D APT. The tool clearly showed not only Cu precipitates at the boundary (and one within a grain), but also the segregation of Mn to the boundary between the precipitates [12]. In addition, the nanoscale chemistry such as precipitate, or grain boundary solute segregation was measured by 3D APT [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 98%