Effect of Relative Humidity on the Tribological Properties of Self-Lubricating H<sub>3</sub>BO<sub>3</sub> Films Formed on the Surface of Steel Suitable for Biomedical Applications

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td align="left" rowspan="2">Unborided samples</td><td align="center" rowspan="2">Borided samples</td><td align="center" colspan="5">Annealed samples relative humidity (%)</td></tr><tr class="thead"><td align="center">20</td><td align="center">40</td><td align="center">60</td><td align="center">75</td><td align="center">85</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td align="left">0.62</td><td align="center">0.52</td><td align="center">0.164 ± 0.013</td><td align="center">0.125 ± 0.012</td><td align="center">0.026 ± 0.0015</td><td align="center">0.050 ± 0.0027</td><td align="center">0.074 ± 0.0064</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Friction coefficients for the different RH conditions.

Advances in Materials Science and Engineering

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Table 3

Table 3: Effect of Relative Humidity on the Tribological Properties of Self-Lubricating H<sub>3</sub>BO<sub>3</sub> Films Formed on the Surface of Steel Suitable for Biomedical Applications 

Table 3 | Effect of Relative Humidity on the Tribological Properties of Self-Lubricating H3BO3 Films Formed on the Surface of Steel Suitable for Biomedical Applications 