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

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr class="thead"><td class="align_left">Elements</td><td class="align_center">K<sup>+</sup></td><td class="align_center">Na<sup>+</sup></td><td class="align_center">Mg<sup>2+</sup></td><td class="align_center">Ca<sup>2+</sup></td><td class="align_center">HCO<sub>3</sub><sup>−</sup></td><td class="align_center">Cl<sup>−</sup></td><td class="align_center">SO<sub>4</sub><sup>2−</sup></td><td class="align_center">SiO<sub>2</sub></td></tr><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr><td class="align_left">Mg/L</td><td class="align_center">354</td><td class="align_center">9854</td><td class="align_center">1182</td><td class="align_center">385</td><td class="align_center">130</td><td class="align_center">17742</td><td class="align_center">2477</td><td class="align_center">0.9</td></tr><tr class="table-tr"><td colspan="9"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Major chemical components of seawater from the East China Sea.</div>

Advances in Materials Science and Engineering

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Table 3

Table 3: Corrosion Crack Nucleation Mechanism in the Welded Structures of X65 Steel in Natural Seawater 