Dynamic recrystallization kinetics of AISI ۴۰۳ stainless steel using hot compression test
Publish place: The Iranian Journal of Materials Forming، Vol: 1، Issue: 0
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMF-1-0_004
تاریخ نمایه سازی: 14 شهریور 1402
Abstract:
In this work dynamic recrystallization behavior of AISI ۴۰۳ martensitic stainless steel was studied using hot compression tests over temperature range of ۹۰۰ C -۱۲۰۰ C and strain rate range of ۰.۰۰۱ s-۱ - ۱ s-۱. The obtained flow curves showed that the hot compression behavior of the alloy is controlled by dynamic recrystallization. The flow stress and strain corresponding to the critical, peak and onset of steady state region were related to the Zener-Hollomon parameter using simple power equations. The variation of dynamic recrystallization fraction with strain showed that restoration kinetics is enhanced with increasing temperature and decreasing strain rate. The development of DRX was modeled using Avrami Kinetics equation. The equations proposed by Baragar and Cingara-McQueen were used to develop a new model capable of predicting the flow curves up to the onset of steady state flow region. This work softening is mainly controlled by the phenomenon dynamic recrystallization.
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Authors
E. Kevanlo
Department of Materials and Polymer Engineering, Hakim Sabzevari University, Sabzevar, Iran
G.R. Ebrahimi
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
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