The role of C and Mn at the austenite/pearlite reaction front during non-steady-state pearlite growth in a Fe-C-Mn steel

被引：24

作者：

Aranda, M. M. ^{[1
]}

Rementeria, R. ^{[1
]}

Poplawsky, J. ^{[2
]}

Urones-Garrote, E. ^{[3
]}

Capdevila, C. ^{[1
]}

机构：

[1] CENIM CSIC, Mat Res Grp, Madrid 28040, Spain

[2] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA

[3] Univ Complutense Madrid, Fac Ciencias Quim, CNME, E-28040 Madrid, Spain

来源：

SCRIPTA MATERIALIA | 2015年 / 104卷

关键词：

Divergent pearlite; Interface diffusion; Growth rate; Pearlitic steel; EUTECTOID STEEL;

D O I：

10.1016/j.scriptamat.2015.04.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The role of C and Mn during the growth of pearlite under non-steady state conditions is analyzed by comparing phase compositions of austenite, ferrite and cementite (gamma+alpha+theta) through the use of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), and atom probe tomography (APT) measurements across the austenite/pearlite interface. A local Mn enrichment and C depletion at the austenite/pearlite interface has been measured, which causes a change in the transformation driving force with time during divergent pearlite growth. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：67 / 70

页数：4

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