Dynamic Recrystallization Kinetics of AISI 403 Stainless Steel Using Hot Compression Test
Publish place: The Iranian Journal of Materials Forming، Vol: 1، Issue: 2
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMF-1-2_004
تاریخ نمایه سازی: 8 دی 1395
Abstract:
In this work dynamic recrystallization behavior of AISI 403 martensitic stainless steelwas studied using hot compression tests over temperature range of 900°C -1200°C and strain raterange of 0.001 s-1-1 s-1. The obtained flow curves showed that the hot compression behavior of thealloy is controlled by dynamic recrystallization. The flow stress and strain corresponding to thecritical, peak and onset of steady state region were related to the Zener-Hollomon parameter usingsimple power equations. The variation of dynamic recrystallization fraction with strain showedthat restoration kinetics is enhanced with increasing the temperature and decreasing the strain rate.The development of DRX was modeled using Avrami Kinetics equation. The equations proposedby Baragar and Cingara-McQueen were used to develop a new model capable of predicting theflow curves up to the onset of steady state flow region. This softening work is mainly controlledby the phenomenon of dynamic recrystallization.
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Authors
E Kevanlo
Department of Materials and Polymer Engineering, Hakim Sabzevari University, Sabzevar, Iran
G.R Ebrahimi
Department of Materials and Polymer Engineering, Hakim Sabzevari University, Sabzevar, Iran
S.A.A Sani
Department of Materials Science and Engineering, Iran University of Sience and Technology, Tehran, Iran
A Momeni
Department of Materials Science and Engineering, Hamedan University of Technology, Hamedan, Iran