Interpretation of atom probe tomography data for the intermetallic TiAl+Nb by means of field evaporation simulation
Type
ArticleAuthors
Boll, TorbenAl-Kassab, Tala'at
KAUST Department
Material Science and Engineering ProgramPhysical Science and Engineering (PSE) Division
Date
2013-01Permanent link to this record
http://hdl.handle.net/10754/562562
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In this paper simulations of the field evaporation process during field ion microscopy (FIM) and atom probe tomography (APT) are presented and compared with experimental data. The Müller-Schottky-model [1] was extended to include the local atomic arrangement on the evaporation process of atoms. This arrangement was described by the sum of the next-neighbor-binding-energies, which differ for an atom of type A, depending on how many A-A, B-B or A-B bonds are present. Thus simulations of APT-data of intermetallic phases become feasible. In this study simulations of L10-TiAl with additions of Nb are compared with experimental data. Certain artifacts, which appear for experimental data are treated as well. © 2012 Elsevier B.V.Citation
Boll, T., & Al-Kassab, T. (2013). Interpretation of atom probe tomography data for the intermetallic TiAl+Nb by means of field evaporation simulation. Ultramicroscopy, 124, 1–5. doi:10.1016/j.ultramic.2012.09.003Sponsors
The authors would like to acknowledge financial support by the Deutsch-Chinesisches Zentrum zur Wissenschaftsforderung (032/2), Beijing and the Deutsche Forschungsgemeinschaft (Contract AL 592/1-3).Publisher
Elsevier BVJournal
UltramicroscopyPubMed ID
23142738ae974a485f413a2113503eed53cd6c53
10.1016/j.ultramic.2012.09.003
Scopus Count
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