The coupled solute drag effect during ferrite growth in Fe-C-Mn-Si alloys using controlled decarburization

C. Qiu, Hatem S Zurob, C.R. Hutchinson

Research output: Contribution to journalArticleResearchpeer-review

22 Citations (Scopus)

Abstract

The kinetics of ferrite growth in three Fe–C–Mn–Si quaternary alloys has been measured using controlled decarburization tests at four temperatures between 755 C and 825 C, and a critical, quantitative test of the existence of a coupled solute drag effect (CSDE) is performed. The Mn and Si binding energies and trans-interface diffusivities (critical inputs in solute drag modelling) are taken directly from analogous experiments recently reported for ternary Fe–C–Mn and Fe–C–Si systems. The net solute drag effect experimentally observed in the quaternary system is found to be significantly less than that predicted by modelling using binding energies and trans-interface diffusivities calibrated on the respective ternary systems, i.e. an anti-CSDE is observed. This surprising observation is discussed in the context of solute interactions within the migrating interface and a number of future directions requiring investigation are highlighted.
Original languageEnglish
Pages (from-to)333 - 343
Number of pages11
JournalActa Materialia
Volume100
DOIs
Publication statusPublished - 2015

Cite this

@article{bfdb41d6a91640a784fb9b323d24bef0,
title = "The coupled solute drag effect during ferrite growth in Fe-C-Mn-Si alloys using controlled decarburization",
abstract = "The kinetics of ferrite growth in three Fe–C–Mn–Si quaternary alloys has been measured using controlled decarburization tests at four temperatures between 755 C and 825 C, and a critical, quantitative test of the existence of a coupled solute drag effect (CSDE) is performed. The Mn and Si binding energies and trans-interface diffusivities (critical inputs in solute drag modelling) are taken directly from analogous experiments recently reported for ternary Fe–C–Mn and Fe–C–Si systems. The net solute drag effect experimentally observed in the quaternary system is found to be significantly less than that predicted by modelling using binding energies and trans-interface diffusivities calibrated on the respective ternary systems, i.e. an anti-CSDE is observed. This surprising observation is discussed in the context of solute interactions within the migrating interface and a number of future directions requiring investigation are highlighted.",
author = "C. Qiu and Zurob, {Hatem S} and C.R. Hutchinson",
year = "2015",
doi = "10.1016/j.actamat.2015.08.065",
language = "English",
volume = "100",
pages = "333 -- 343",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier",

}

The coupled solute drag effect during ferrite growth in Fe-C-Mn-Si alloys using controlled decarburization. / Qiu, C.; Zurob, Hatem S; Hutchinson, C.R.

In: Acta Materialia, Vol. 100, 2015, p. 333 - 343.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The coupled solute drag effect during ferrite growth in Fe-C-Mn-Si alloys using controlled decarburization

AU - Qiu, C.

AU - Zurob, Hatem S

AU - Hutchinson, C.R.

PY - 2015

Y1 - 2015

N2 - The kinetics of ferrite growth in three Fe–C–Mn–Si quaternary alloys has been measured using controlled decarburization tests at four temperatures between 755 C and 825 C, and a critical, quantitative test of the existence of a coupled solute drag effect (CSDE) is performed. The Mn and Si binding energies and trans-interface diffusivities (critical inputs in solute drag modelling) are taken directly from analogous experiments recently reported for ternary Fe–C–Mn and Fe–C–Si systems. The net solute drag effect experimentally observed in the quaternary system is found to be significantly less than that predicted by modelling using binding energies and trans-interface diffusivities calibrated on the respective ternary systems, i.e. an anti-CSDE is observed. This surprising observation is discussed in the context of solute interactions within the migrating interface and a number of future directions requiring investigation are highlighted.

AB - The kinetics of ferrite growth in three Fe–C–Mn–Si quaternary alloys has been measured using controlled decarburization tests at four temperatures between 755 C and 825 C, and a critical, quantitative test of the existence of a coupled solute drag effect (CSDE) is performed. The Mn and Si binding energies and trans-interface diffusivities (critical inputs in solute drag modelling) are taken directly from analogous experiments recently reported for ternary Fe–C–Mn and Fe–C–Si systems. The net solute drag effect experimentally observed in the quaternary system is found to be significantly less than that predicted by modelling using binding energies and trans-interface diffusivities calibrated on the respective ternary systems, i.e. an anti-CSDE is observed. This surprising observation is discussed in the context of solute interactions within the migrating interface and a number of future directions requiring investigation are highlighted.

UR - http://goo.gl/VhsHRD

U2 - 10.1016/j.actamat.2015.08.065

DO - 10.1016/j.actamat.2015.08.065

M3 - Article

VL - 100

SP - 333

EP - 343

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

ER -