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Updated: Jun 26, 2026

Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory
Published on: March 7, 2018
The study of quantitativeness in atom probe analysis of alloying elements in steel
Y Yamaguchi1, J Takahashi, K Kawakami
1Advanced Technology Research Laboratories, Nippon Steel Corporation, 20-1 Shintomi, Futtsu-City, Chiba 293-8511, Japan. yamaguchi.yukiko@nsc.co.jp
Abstract:
The quantitativeness in atom probe analysis of dilute solute alloying elements in steel was systematically investigated. The samples of binary Fe-Si, Fe-Ti, Fe-Cr, Fe-Cu, Fe-Mn and Fe-Mo alloys were prepared for present study. The apparent compositions of alloying elements were examined by three-dimensional atom probe (3DAP) under various experimental conditions. The temperature dependence of the apparent compositions varied largely with the alloys, which indicated that the degree of preferential evaporation or retention varied with the alloying elements. Furthermore, the analysis direction dependence of the apparent Mn composition was examined in the Fe-Mn alloy. The experimental results indicated that the order of the field evaporation rate of elements in steel was Cu>Cr>Mn approximately Mo>Fe>Ti approximately Si. The field evaporability of alloying elements in steel was discussed in terms of the solution enthalpy of the alloying elements and the phase types of the binary Fe alloys.
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