Improvement of Surface Properties of Inconel718 by HVOF Coating with WC-Metal Powder and by Laser Heat Treatment of the Coating

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left">Surface</td><td align="center">In718</td><td align="center">Coating</td><td align="center">LH coating</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">Surface hardness (Hv)</td><td align="center">400 ± 10</td><td align="center">980 ± 100</td><td align="center">1430 ± 90</td></tr><tr><td align="left">Porosity (%)</td><td align="center">0.00</td><td align="center">2.5 ± 0.5</td><td align="center">0.35 ± 0.05</td></tr><tr><td align="left">Friction coefficient</td><td align="center">0.45 ± 0.08</td><td align="center">0.32 ± 0.02</td><td align="center">0.20 ± 0.03</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Improvement of surface properties by coating and LH coating.

Advances in Materials Science and Engineering

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Table 3

Table 3: Improvement of Surface Properties of Inconel718 by HVOF Coating with WC-Metal Powder and by Laser Heat Treatment of the Coating 