Effect of Processing Parameters on the Protective Quality of Electroless Nickel-Phosphorus on Cast Aluminium Alloy

<table class="table-group" id="tab16"><tr><td><table class="table"><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr class="thead"><td align="left">Element</td><td align="center">C</td><td align="center">O</td><td align="center">Na</td><td align="center">Al</td><td align="center">Si</td><td align="center">P</td><td align="center">Ni</td><td align="center">Total</td></tr><tr><td class="thead-hr" colspan="9"><hr/></td></tr><tr><td align="left">Weight % </td><td align="center">6.00</td><td align="center">5.09</td><td align="center">0.35</td><td align="center">6.67</td><td align="center">9.60</td><td align="center">—</td><td align="center">72.30</td><td align="center">100</td></tr><tr><td align="left">Atomic %</td><td align="center">18.82</td><td align="center">11.99</td><td align="center">0.57</td><td align="center">9.32</td><td align="center">12.89</td><td align="center">—</td><td align="center">46.42</td><td align="center"> </td></tr><tr class="table-tr"><td colspan="9"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

EDX spectrum data for Ni-P plated CAA at pH = 11.5 NH<sub>4</sub>OH regulated at 85°C.

Journal of Metallurgy

tab16

Table 16

Table 16: Effect of Processing Parameters on the Protective Quality of Electroless Nickel-Phosphorus on Cast Aluminium Alloy 