Precipitation of niobium carbonitrides in ferrite: chemical composition measurements and thermodynamic modelling. Perez, M., Courtois, E., Acevedo, D., Epicier, T., & Maugis, P. Philosophical Magazine Letters, 87(9):645–656, September, 2007.
Precipitation of niobium carbonitrides in ferrite: chemical composition measurements and thermodynamic modelling [link]Paper  doi  abstract   bibtex   
High-resolution transmission electron microscopy and electron-energy loss spectroscopy have been used to characterize the structure and chemical composition of niobium carbonitrides in the ferrite of a Fe–Nb–C–N model alloy at different precipitation stages. Experiments seem to indicate the coexistence of two types of precipitates: pure niobium nitrides and mixed sub-stoichiometric niobium carbonitrides. In order to understand the chemical composition of these precipitates, a thermodynamic formalism has been developed to evaluate the nucleation and growth rates (classical nucleation theory) and the chemical composition of nuclei and existing precipitates. A model based on the numerical solution of thermodynamic and kinetic equations is used to compute the evolution of the precipitate size distribution at a given temperature. The predicted compositions are in very good agreement with experimental results.
@article{perez_precipitation_2007-1,
	title = {Precipitation of niobium carbonitrides in ferrite: chemical composition measurements and thermodynamic modelling},
	volume = {87},
	issn = {0950-0839},
	shorttitle = {Precipitation of niobium carbonitrides in ferrite},
	url = {https://doi.org/10.1080/09500830701427003},
	doi = {10.1080/09500830701427003},
	abstract = {High-resolution transmission electron microscopy and electron-energy loss spectroscopy have been used to characterize the structure and chemical composition of niobium carbonitrides in the ferrite of a Fe–Nb–C–N model alloy at different precipitation stages. Experiments seem to indicate the coexistence of two types of precipitates: pure niobium nitrides and mixed sub-stoichiometric niobium carbonitrides. In order to understand the chemical composition of these precipitates, a thermodynamic formalism has been developed to evaluate the nucleation and growth rates (classical nucleation theory) and the chemical composition of nuclei and existing precipitates. A model based on the numerical solution of thermodynamic and kinetic equations is used to compute the evolution of the precipitate size distribution at a given temperature. The predicted compositions are in very good agreement with experimental results.},
	number = {9},
	urldate = {2020-02-11},
	journal = {Philosophical Magazine Letters},
	author = {Perez, M. and Courtois, E. and Acevedo, D. and Epicier, T. and Maugis, P.},
	month = sep,
	year = {2007},
	pages = {645--656}
}

Downloads: 0