Volume 12, Issue 1 (march 2015 2015)                   IJMSE 2015, 12(1): 52-58 | Back to browse issues page

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Shaban Ghazani M, Vajd A, Mosadeg B. PREDICTION OF CRITICAL STRESS AND STRAIN FOR THE ONSET OF DYNAMIC RECRYSTALLIZATION IN PLAIN CARBON STEELS. IJMSE 2015; 12 (1) :52-58
URL: http://ijmse.iust.ac.ir/article-1-767-en.html
PREDICTION OF CRITICAL STRESS AND STRAIN FOR THE ONSET OF DYNAMIC RECRYSTALLIZATION IN PLAIN CARBON STEELS
M. Shaban Ghazani , A. Vajd , B. Mosadeg
Abstract:   (20271 Views)
The aim of the present study is the prediction of critical conditions (including critical strain and flow stress) for the initiation of dynamic recrystallization during thermo-mechanical processing of plain carbon steels. For this propose, torsion tests were conducted at different temperature (1050, 1100 and 1150˚C) and strain rates (0.002, 0.02 and 0.2/s). All flow curves showed a peak stress indicating that dynamic recrystallization occurs during hot deformation. The critical stress and strain were then determined based on change in strain hardening rate as a function of flow stress. Finally, the effect of deformation conditions on these parameters was analyzed.
Keywords: Dynamic recrystallization, Critical stress, Critical strain, Low carbon steel.
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Type of Study: Research Paper | Subject: Ceramics
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