Trajectory overlaps and local magnification in three-dimensional atom probe

By F. Vurpillot, A. Bostel, D. Blavette. 2000

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Massive nanoprecipitation in an Fe-19Ni-xAl maraging steel triggered by the intrinsic heat treatment during laser metal deposition (2017, neutral): “The fact that the ratio of (AlþFe)/Ni as measured by APT is not 1, as mentioned above, can partially be attributed to trajectory aberrations [40] due to different evaporation fields of the intermetallic precipitates NiAl and the matrix [63].”
Atom probe tomography spatial reconstruction: Status and directions (2013, methodology): “In addition, experimental observations of specimens after field evaporation have long demonstrated that there is usually no tangential continuity between the conical shank and the emitting cap [44, 47, 49, 57-59], 2) the crystallographic dependence of evaporation field is strong in many materials/st”
The influence of Sc solute partitioning on the microalloying effect and mechanical properties of Al-Cu alloys with minor Sc addition (2016, background): “Differences in the electric field required to induce field evaporation between phases within an atom probe specimen cause development of local curvature at the specimen surface, which induces local magnification effects and trajectory aberrations [58].”
Sequential nucleation of phases in a 17-4PH steel: Microstructural characterisation and mechanical properties (2017, background): “) Cr is most likely the well-known local magnification effect of APT [20,30,31].”