Paper Title:
Austenite Decomposition in Low Carbon Steels with Microalloy Additions
  Abstract

A metallurgical model to describe the formation of ferrite, perlite and bainite during continuous cooling was developed. The model uses classical nucleation and early growth theories to calculate the beginning of the reaction, and Avrami-type equations to evaluate the transformation progress. The materials studied were plain carbon steels with different Mn contents, and microalloyed steels with Nb, Ti and/or V additions. The model predictions were adjusted and validated with experimental results obtained from dilatometric tests. The range of cooling rates considered was between 5°C/sec and 50°C/sec. From the comparison with the experimental data it was found that the model correctly describes the dependence of the reaction kinetic on the cooling rate, as well as on the steel chemistry.

  Info
Periodical
Materials Science Forum (Volumes 500-501)
Edited by
J.M. Rodriguez-Ibabe, I. Gutiérrez, B. López and A. Iza-Mendia
Pages
395-402
DOI
10.4028/www.scientific.net/MSF.500-501.395
Citation
G.R. Gomez, M. Bühler, T. Perez, "Austenite Decomposition in Low Carbon Steels with Microalloy Additions", Materials Science Forum, Vols. 500-501, pp. 395-402, 2005
Online since
November 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Kook Lee, Jin-Myung Hong, Chong Sool Choi, Jae Kon Lee
Abstract:Effects of niobium content and cooling rate on ferrite and bainite start temperatures (Ar3, Bs) and microstructural features have been...
65
Authors: Andrej Samoilov, Yuri Titovets, Nikolay Y. Zolotorevsky, Gottfried Hribernig, Andreas Pichler
Abstract:An experimental study of Fe-C-Mn-Cr low-carbon steels with varying Cr content is presented. Pronounced bay and a near-stasis behavior were...
311
Authors: M.S. Koo, Ping Guang Xu, J.H. Li, Yo Tomota, O. Muransky, Petr Lukáš, Yoshitaka Adachi
Abstract:A challenge was made to examine the micro-structural evolution during thermomechanically controlled processing (TMCP) by in situ neutron...
419
Authors: J.S. Kang, S.S. Ahn, C.Y. Yoo, Chan Gyung Park
Abstract:In the present study, focused ion beam (FIB) technique was applied to make site-specific TEM specimens and to identify the 3-dimensional...
73
Authors: Fang Fang, Yun Yang Yin, Hui Wang, Cheng Jiang Lin
Chapter 4: Trends in Materials and Manufacturing
Abstract:The theoretical prediction of intercritical annealing temperature for DP steels was conducted by thermodynamic calculation, which agreed to...
301