Prediction of Fatigue Life of Welded Joints Made of Fine-Grained Martensite-Bainitic S960QL Steel and Determination of Crack Origins

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center"><i>E</i> (MPa)</td><td class="align_center"><i>R</i><sub><i>p</i>0.2</sub> (MPa)</td><td class="align_center"><i>R</i><sub><i>m</i></sub> (MPa)</td><td class="align_center"><i>A</i> (%)</td><td class="align_center"><i>Z</i> (%)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Own measurement</td><td class="align_center">2.20 × 10<sup>5</sup></td><td class="align_center">974</td><td class="align_center">1070</td><td class="align_center">14.2</td><td class="align_center">45.6</td></tr><tr><td class="align_left">According to the certificate</td><td class="align_center">—</td><td class="align_center">997</td><td class="align_center">1069</td><td class="align_center">13.0</td><td class="align_center">—</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Mechanical properties of S960QL steel.</div>

Advances in Materials Science and Engineering

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Table 2

Table 2: Prediction of Fatigue Life of Welded Joints Made of Fine-Grained Martensite-Bainitic S960QL Steel and Determination of Crack Origins 