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HomeMaterials Science ForumMaterials Science Forum Vols. 704-705Flow Behavior of Fe-3%Si Steel at High...

Flow Behavior of Fe-3%Si Steel at High Temperatures and Strain Rates

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Abstract:

Hot deformation behavior of Fe-3%Si steel within temperature range of 1073~1473K and strain rate range of 0.01~5s⁻¹ was investigated by isothermal compression test using thermo-simulation method. Over the applied deformation conditions, steady state flow behavior was well described by the power law relationship with dislocation climb as the rate-controlling mechanism, and the high apparent activation energy can be attributed to the high yield stress. A modified Bergström model was proposed by introducing yield stress, and consequently the whole stress-strain curves can be accurately predicted.

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Physical and Numerical Simulation of Material Processing VI

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Periodical:

Materials Science Forum (Volumes 704-705)

Pages:

928-934

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.704-705.928

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Online since:

December 2011

Authors:

Feng Hui An, Yu Hui Sha, Liang Zuo

Keywords:

Activation Energy, Dynamic Recovery, Hot Deformation, Prediction, Silicon Steel

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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