Microstructural Characteristics and Mechanical Properties of Nanostructured and Conventional TiAlN and AlCrN Coatings on ASTM-SA210 Grade A-1 Boiler Steel

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">Arc current (A)</td><td align="center">750</td></tr><tr><td align="left">Arc voltage (V)</td><td align="center">45</td></tr><tr><td align="left">Powder feed rate (rev/min)</td><td align="center">5.2</td></tr><tr><td align="left">Spraying distance (mm)</td><td align="center">90–110</td></tr><tr><td align="left">Plasma arc gas (argon) pressure</td><td align="center">58 psi</td></tr><tr><td align="left">Powder gas pressure</td><td align="center">60 psi</td></tr><tr><td align="left">AVX gas pressure</td><td align="center">10 psi</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Parameters of the argon shrouded plasma spray process.

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Table 3

Table 3: Microstructural Characteristics and Mechanical Properties of Nanostructured and Conventional TiAlN and AlCrN Coatings on ASTM-SA210 Grade A-1 Boiler Steel 

Table 3 | Microstructural Characteristics and Mechanical Properties of Nanostructured and Conventional TiAlN and AlCrN Coatings on ASTM-SA210 Grade A-1 Boiler Steel 