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Prediction of flow stress and microstructural evolution during hot forging of three microalloyed medium carbon steels
- Authors
- Yoo, Y.C.; Kim, S.I.; Byon, S.M.; Lee, Y.
- Issue Date
- Jan-2005
- Publisher
- TRANS TECH PUBLICATIONS LTD
- Keywords
- microalloyed medium carbon steel; dynamic recrystallization; volume fraction of recrystallization; flow stress softening; finite element analysis
- Citation
- PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5, v.475-479, no.I, pp 169 - 173
- Pages
- 5
- Journal Title
- PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5
- Volume
- 475-479
- Number
- I
- Start Page
- 169
- End Page
- 173
- ISSN
- 0255-5476
- Abstract
- A constitutive relation is proposed in this study by introducing a function prescrbing the volume fraction of dynamically recrystallized grains into the Voce's equation to predict the stress-strain relations for three microalloyed medium carbon steels. We performed hot torsion test in temperature range of 900-1100 degrees C and strain rate range of 0.05-5.0s(-1) to obtain the flow stress-strain curves. The calculated flow stresses are in good agreement with the measured ones. We have then applied the equations in FE analysis to predict the distribution of dynamic recrystallization volume fraction and flow stress for hot forging.
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Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
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