Studies of boundaries and interfaces on the atomic scale by atom probe FIM
This paper describes recent developments in the experimental methods of atom probe field ion microscopy, and in particular the means for the three-dimensional reconstruction of the atomic chemistry of solids. A selection of applications is presented, involving the study of grain boundary and interfa...
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1998
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| Achoimre: | This paper describes recent developments in the experimental methods of atom probe field ion microscopy, and in particular the means for the three-dimensional reconstruction of the atomic chemistry of solids. A selection of applications is presented, involving the study of grain boundary and interface phenomena. Topics discussed are segregation to grain boundaries in ultra-low carbon steels; the reconstruction of atomic plane configurations in a tungsten bicrystal; and the partitioning and redistribution of solute in the region of an interphase interface in a rhenium-containing nickel-base superalloy. The ability of the atom probe to provide quantitative chemical analysis on the nanometre scale is emphasised. |
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