Title: Dimensional analysis in the growth kinetics of FeB and Fe₂B layers during the boriding process

Authors: R. Torres, I. Campos, G. Ramirez, O. Bautista, J. Martinez

Addresses: Instituto de Investigaciones en Materiales, UNAM, Circuito Exterior S/N Ciudad Universitaria, Mexico D.F. 04510, Mexico. ' Instituto Politecnico Nacional, SEPI-ESIME, U.P. Adolfo Lopez Mateos, Zacatenco, Mexico D.F. 07738, Mexico. ' Instituto Politecnico Nacional, SEPI-ESIME, U.P. Adolfo Lopez Mateos, Zacatenco, Mexico D.F. 07738, Mexico. ' Instituto Politecnico Nacional, SEPI-ESIME, Azcapotzalco, Mexico D.F. 02550, Mexico. ' Instituto Politecnico Nacional, SEPI-ESIME, U.P. Adolfo Lopez Mateos, Zacatenco, Mexico D.F. 07738, Mexico

Abstract: Dimensional analysis is presented as a powerful tool in the study of the paste boriding process. In particular, a dimensional method is used to study the growth kinetics of the boride layers FeB and Fe₂B. Experiments were performed in AISI 1045 steel and AISI M2 steel, to test the suggested model. Results indicate that the growth of boride layers obeys power laws of the form γ = αχ^β, where the α and β constants are a function of the material and the interface of interest.

Keywords: dimensional analysis; growth kinetics; paste boriding; boride layers; microstructure; material properties; heat treatment; iron boride; steel surface.

DOI: 10.1504/IJMMP.2007.012940

International Journal of Microstructure and Materials Properties, 2007 Vol.2 No.1, pp.73 - 83

Published online: 31 Mar 2007 *

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