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Title: Modeling of AlN precipitation in low carbon steels

Abstract

The precipitation of nitrides or carbides of microalloying elements can have significant effects on the mechanical properties of steels due to their influence on recrystallization and grain growth during thermomechanical processing of steels. A theoretically-based model is being developed to predict the precipitation kinetics of nitrides and carbides in microalloyed low carbon steels undergoing thermomechanical treatments. This model will take into account the equilibrium thermodynamic properties of the systems, the precipitate morphology, the misfit strain energy and the curvature effects, etc. The precipitation kinetics are formulated using classical nucleation and growth theories. Both homogeneous and heterogeneous nucleation are being considered. In the present work, the model is applied to study the precipitation behavior of aluminum nitride (AlN) in Al-killed low carbon steels.

Authors:
; ;  [1]
  1. Univ. of British Columbia, Vancouver, British Columbia (Canada). Dept. of Metals and Materials Engineering
Publication Date:
OSTI Identifier:
691326
Resource Type:
Journal Article
Journal Name:
Scripta Materialia
Additional Journal Information:
Journal Volume: 41; Journal Issue: 6; Other Information: PBD: 20 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MICROSTRUCTURE; CARBON STEELS; MATHEMATICAL MODELS; PRECIPITATION; NUCLEATION; NITRIDES; CARBIDES; THERMODYNAMICS; KINETICS; GRAIN GROWTH

Citation Formats

Cheng, L.M., Hawbolt, E.B., and Meadowcroft, T.R. Modeling of AlN precipitation in low carbon steels. United States: N. p., 1999. Web. doi:10.1016/S1359-6462(99)00108-6.
Cheng, L.M., Hawbolt, E.B., & Meadowcroft, T.R. Modeling of AlN precipitation in low carbon steels. United States. doi:10.1016/S1359-6462(99)00108-6.
Cheng, L.M., Hawbolt, E.B., and Meadowcroft, T.R. Fri . "Modeling of AlN precipitation in low carbon steels". United States. doi:10.1016/S1359-6462(99)00108-6.
@article{osti_691326,
title = {Modeling of AlN precipitation in low carbon steels},
author = {Cheng, L.M. and Hawbolt, E.B. and Meadowcroft, T.R.},
abstractNote = {The precipitation of nitrides or carbides of microalloying elements can have significant effects on the mechanical properties of steels due to their influence on recrystallization and grain growth during thermomechanical processing of steels. A theoretically-based model is being developed to predict the precipitation kinetics of nitrides and carbides in microalloyed low carbon steels undergoing thermomechanical treatments. This model will take into account the equilibrium thermodynamic properties of the systems, the precipitate morphology, the misfit strain energy and the curvature effects, etc. The precipitation kinetics are formulated using classical nucleation and growth theories. Both homogeneous and heterogeneous nucleation are being considered. In the present work, the model is applied to study the precipitation behavior of aluminum nitride (AlN) in Al-killed low carbon steels.},
doi = {10.1016/S1359-6462(99)00108-6},
journal = {Scripta Materialia},
number = 6,
volume = 41,
place = {United States},
year = {1999},
month = {8}
}