TEM Study of High-Temperature Precipitation of Delta Phase in Inconel 718 Alloy

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left">Ageing conditions</td><td align="center">Image analysis [<a href="/journals/amse/2011/940634/#B9">9</a>]</td><td align="center">Rietveld Refinement</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left">960°C—1 h</td><td align="center">2.3</td><td align="center">2.5</td></tr><tr><td align="left">960°C—10 h</td><td align="center">5.6</td><td align="center">6.2</td></tr><tr><td align="left">920°C—10 h</td><td align="center">7.3</td><td align="center">7.8</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Volume fraction (%) of delta phase after different ageing treatments obtained by image analysis [<a href="/journals/amse/2011/940634/#B9">9</a>] and by Rietveld refinement.

Advances in Materials Science and Engineering

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Table 3

Table 3: TEM Study of High-Temperature Precipitation of Delta Phase in Inconel 718 Alloy 