Corrosion Crack Nucleation Mechanism in the Welded Structures of X65 Steel in Natural Seawater

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Time node</td><td class="align_center">Serial number of specimen out of water</td><td class="align_center">Data to be collected</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">60 d</td><td class="align_center">Group A1, A5</td><td class="align_center" rowspan="2">1. Surface corrosion morphology</td></tr><tr><td class="align_left">120 d</td><td class="align_center">Group A2, A6</td></tr><tr><td class="align_left">180 d</td><td class="align_center">Group A3, A7</td><td class="align_center">2. Distribution of residual stress</td></tr><tr><td class="align_left">360 d</td><td class="align_center">Group A4, A8</td><td class="align_center">3. Surface magnetic field distribution</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Date when specimens go out of water and data collection.</div>

Advances in Materials Science and Engineering

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Table 4

Table 4: Corrosion Crack Nucleation Mechanism in the Welded Structures of X65 Steel in Natural Seawater 