Title of article
ULTRA FINE FERRITE FORMATION IN Si-Mn TRIP STEELS
Author/Authors
Ghadarghadr Jahromi، K. نويسنده Department of Metallurgy and Materials Science Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran , , ZAREI HANZAKI، A. نويسنده , , Golmahalleh، O. نويسنده Department of Metallurgy and Material Science, Faculty of Engineering, Tehran University, Tehran, Iran ,
Issue Information
فصلنامه با شماره پیاپی 17 سال 2008
Pages
7
From page
1
To page
7
Abstract
n the present investigation, the effects of thermomechanical processing parameters and
the steel chemical composition on the ultra fine ferrite formation characteristics were studied.
This was programmed relying on the capabilities of strain induced transformation (SIT)
phenomenon and applying to different grades of Si-Mn TRIP (Transformation Induced Plasticity)
steels. Accordingly, wedge shaped specimens were rolled at two different temperatures, above and
below the austenite-to-ferrite transformation temperature (Ar3). An ultra fine ferrite grain size, in
the scale of some hundred nanometers, was obtained by rolling the specimens with lower Si
content at a temperature below the related Ar3 temperature. The amount of reduction, which was
resulted in the latter microstructure, was realized to be about 55%.
Journal title
Iranian Journal of Materials Science and Engineering
Serial Year
2008
Journal title
Iranian Journal of Materials Science and Engineering
Record number
2036972
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