ULTRA FINE FERRITE FORMATION IN Si-Mn TRIP STEELS
Publish Year: 1386
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMSEI-5-1_001
تاریخ نمایه سازی: 26 مرداد 1402
Abstract:
Abstract: In 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 (Ar۳). 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 Ar۳ temperature. The amount of reduction, which was
resulted in the latter microstructure, was realized to be about ۵۵%.
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