Trapping of Sb by TaC and Cu precipitates in ion-implanted Fe
- 1 June 1981
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (6) , 4007-4017
- https://doi.org/10.1063/1.329210
Abstract
Experimental evidence is presented for trapping of Sb by TaC and Cu precipitates in Fe. These processes were studied during annealing at 873 K of Fe ion-implanted with either Ta, C, and Sb, or Cu and Sb. For both precipitates the derived binding enthalpy is ∼0.4 eV when referenced to an Sb solution site in the bcc-Fe phase. It is argued that this trapping occurs at the precipitate-host interface, and that it is due primarily to the associated structural discontinuity. In the Fe-Cu-Sb alloys, trapping was accompanied by two other processes which immobilize Sb, namely, dissolution into the fcc-Cu phase and formation of β-Cu3Sb. The trapping effects observed in these studies are of potential significance for the control of Sb embrittlement in ferritic steels.This publication has 11 references indexed in Scilit:
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