Open AccessAnalysis of the growth kinetics of Fe2B layers by the integral method
Author(s) -
М. Кеддам,
Michał Kulka
Publication year - 2018
Publication title -
journal of mining and metallurgy. section b, metallurgy/journal of mining and metallurgy. section b, metallurgy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 20
eISSN - 2217-7175
pISSN - 1450-5339
DOI - 10.2298/jmmb180405026k
Subject(s) - boriding , boride , diffusion , boron , activation energy , kinetics , materials science , range (aeronautics) , value (mathematics) , set (abstract data type) , differential (mechanical device) , thermodynamics , metallurgy , mathematics , chemistry , composite material , statistics , physics , computer science , organic chemistry , quantum mechanics , programming language
In this study, an alternative approach based on the integral method was proposed to estimate the values of boron diffusion coefficients in the Fe2B layers grown at the surface of Armco iron. The set of differential algebraic equations (DAE) system was obtained to estimate the value of activation energy for boron diffusion when pack-boriding of Armco iron in the range of 1123 to 1273 K taking into account the boride incubation time. The present model has been validated by making a comparison between the experimental value of Fe2B layer thickness obtained at 1253 K for 5 h and the predicted results by using two different approaches. A good agreement was observed between these two set of data.