Laser Treatment for Strengthening of Thin Sheet Steel

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Elastic modulus <i>E</i> (GPa)</td><td class="align_center">Yield strength <i>R</i><sub>0.2</sub> (MPa)</td><td class="align_center">Tensile strength <i>R</i><sub>m</sub> (MPa)</td><td class="align_center">Relative extension <i>А</i> (%)</td><td class="align_center">Hardness (HV)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">200</td><td class="align_center">275</td><td class="align_center">450</td><td class="align_center">32</td><td class="align_center">135</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Results of mechanical tensile tests of steel samples.</div>

Advances in Materials Science and Engineering

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Table 3

Table 3: Laser Treatment for Strengthening of Thin Sheet Steel 