Journal
ISIJ INTERNATIONAL
Volume 52, Issue 3, Pages 471-476Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
DOI: 10.2355/isijinternational.52.471
Keywords
TRIP steels; aluminium alloying; silicon alloying; static recrystallization; activation energy; regression modeling
Categories
Funding
- Finnish Funding Agency for Technology and Innovation (Tekes) [40197/07 (Dnro 1691/31/07)]
- Finnish Metals and Engineering Competence Cluster (FIMECC Ltd)
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High-strength transformation-induced-plasticity steels contain high concentrations of silicon or aluminium or a combination of the two. The effects of up to 1.5 wt.% Si and up to 1.9 wt.% Al on the static recrystallization kinetics of austenite in 0.2C-2.0Mn-0.6Cr steel have been investigated and the activation energies of deformation (Q(def)) and static recrystallization (Q(srx)) have been determined. Addition of aluminium increases Q(def) and Q(srx) more strongly than addition of silicon. Aluminium alloying also retards static recrystallization more strongly than silicon alloying. In both cases, the effects of silicon and aluminium are non-linear saturating towards the highest concentrations studied.
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