Title of article
THE EFFECT OF STRAINING BEFORE AND DURING AUSTENITE TO FERRITE TRANSFORMATION ON THE FINAL CHARACTERISTICS OF Si – Mn TRIP STEELS
Author/Authors
Nosrati، F. نويسنده Department of Materials Science and Engineering, Faculty of Engineering, Tehran University, Tehran, Iran , , Zarei-Hanzaki، A. نويسنده Department of Materials Science and Engineering, Faculty of Engineering, Tehran University, Tehran, Iran ,
Issue Information
فصلنامه با شماره پیاپی سال 2006
Pages
5
From page
26
To page
30
Abstract
TRIP (TRansformation- Induced- Plasticity) behaviour is a powerful mechanism to
improve mechanical properties. The basis of TRIP phenomena is the transformation of retained
austenite with optimum characteristics (volume fraction, stability, size and morphology) to
martensite during deformation at room temperature. Accordingly, the first requirement to obtain
desired TRIP effects is to produce an appropriate microstructure. Thermomechanical processing
is an effective method to control the microstructural evolution thereby mechanical properties in
TRIP steels. This work deals with a TRIP steel containing 0.2%C, evaluating the effects of
straining before and during ??? transformation on its final characteristics, using hot compression
tests. The results revealed that straining in the two phase region (dynamic transformation) not
only reduces the ferrite grain size more significantly, but also increases the retained austenite
volume fraction. Accordingly the final mechanical properties were also improved
Journal title
Iranian Journal of Materials Science and Engineering
Serial Year
2006
Journal title
Iranian Journal of Materials Science and Engineering
Record number
2405034
Link To Document