Microstructure Changes and Improvement in the Mechanical Properties of As-Cast AlSi7MgCu0.5 Alloy Induced by the Heat Treatment and ECAP Technique at Room Temperature

<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 class="align_left">Alloy state</td><td class="align_center"><i>R</i><sub>p0.2</sub> (MPa)</td><td class="align_center"><i>R</i><sub>m</sub> (MPa)</td><td class="align_center"><i>A</i> (%)</td><td class="align_center"><i>A</i><sub>g</sub> (%)</td><td class="align_center"><i>Z</i> (%)</td><td class="align_center">HV0.2</td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">As-cast</td><td class="align_center">127</td><td class="align_center">219</td><td class="align_center">10.1</td><td class="align_center">8.9</td><td class="align_center">14.6</td><td class="align_center">72.2</td></tr><tr><td class="align_left">Overaged</td><td class="align_center">136</td><td class="align_center">208</td><td class="align_center">17.1</td><td class="align_center">7.6</td><td class="align_center">28.2</td><td class="align_center">69.9</td></tr><tr><td class="align_left">ECAPed</td><td class="align_center">319</td><td class="align_center">332</td><td class="align_center">14.5</td><td class="align_center">1.8</td><td class="align_center">21.5</td><td class="align_center">110.7</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The mechanical properties of AlSi7MgCu0.5 alloy.</div>

Advances in Materials Science and Engineering

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Table 3

Table 3: Microstructure Changes and Improvement in the Mechanical Properties of As-Cast AlSi7MgCu0.5 Alloy Induced by the Heat Treatment and ECAP Technique at Room Temperature 

Table 3 | Microstructure Changes and Improvement in the Mechanical Properties of As-Cast AlSi7MgCu0.5 Alloy Induced by the Heat Treatment and ECAP Technique at Room Temperature 