Modeling of kinetics of isothermal idiomorphic ferrite formation in a medium-carbon vanadium-titanium microalloyed steel

被引：0
|
作者：
C. Capdevila
F. G. Caballero
C. García de Andrés
机构：
[1] Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC),the Department of Physical Metallurgy
来源：
Metallurgical and Materials Transactions A | 2001年 / 32卷
关键词：
Ferrite; Austenite; Material Transaction; Pearlite; Nucleation Site;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The present article is concerned with the theoretical and experimental study of the growth kinetics of idiomorphic ferrite in a medium-carbon vanadium-titanium microalloyed steel. A theoretical model is presented to calculate the evolution of isothermal austenite-to-idiomorphic ferrite transformation with time for a given temperature. Moreover, the nature, size, and distribution of the inclusions that are responsible for the intragranular nucleation of idiomorphic ferrite have been characterized by scanning electron microscopy (SEM). Finally, the influence of austenite grain size in the isothermal decomposition of austenite in idiomorphic ferrite has been thoroughly analyzed. An excellent agreement (higher than 90 pct in R2) has been obtained between the experimental and predicted values of the volume fraction of idiomorphic ferrite.
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页码：1591 / 1597
页数：6
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