Further observations on the plastic deformation of a normalized low carbon steel |
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| Authors: | R G Luther T R G Williams |
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| Affiliation: | (1) Mechanical Engineering Department, Salisbury College of Technology, Salisbury, UK;(2) Mechanical Engineering Department, University of Southampton, Southampton, UK |
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| Abstract: | The plastic deformation of a commercial grade low carbon steel has been investigated using microhardness and grain strain
measurement techniques. Two distinct modes of deformation during plastic flow in low carbon ferritic steel have been identified.
The initial stage involves the propagation of the Luder's band along the gauge length of the sample by slip strain in the
surface and near surface grains only, the strain accommodation in the interior of the material being attained by a predominantly
grain translation mode. The second stage involves the propagation of a strain hardening front through the cross-section of
the material as the macro-strain is increased through the flow stress region. |
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