Title
Influence of strain on induced precipitation kinetics in microalloyed steels
Date Issued
01 January 1996
Resource Type
Journal
Author(s)
Medina S.
Abstract
Using torsion tests and applying the back extrapolation method, the statically recrystallized fraction of low carbon microalloyed steels containing vanadium, niobium and titanium, respectively, has been determined for different temperatures and strains. From the recrystallized fraction against time curves it is possible to draw precipitation-time-temperature (PIT) diagrams. These diagrams show that the strain does not affect precipitation kinetics in an independent manner, but that this influence is related with the microalloy content. The greater the strain applied, the shorter the incubation time of induced precipitation, but this influence diminishes as the microalloy content increases. It is also demonstrated that the incubation time is practically independent of the nature of the metal microalloy (V, Ti, Nb). In this sense, new expressions are proposed to relate the incubation and precipitation end times with the strain and the microalloy content. A model is also established for precipitation kinetics at the curve nose temperature.
Start page
1295
End page
1300
Volume
36
Issue
10
Scopus EID
2-s2.0-0030410862
Source
ISIJ International
Resource of which it is part
ISIJ International
ISSN of the container
09151559
Sources of information: Directorio de Producción Científica Scopus