Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effect of Si Contents on Structure and Mechanical Properties of Al-Si Alloy Metallic Foams

Al-Si 합금 발포금속의 조직 및 기계적 특성에 미치는 Si함량의 영향

  • Received : 2009.10.27
  • Accepted : 2010.01.15
  • Published : 2010.02.26
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Abstract

Metal foam is a porous or cellular structure material and representative property is a very high porosity. Foamed materials have very special properties such as sound, vibration, energy and impact absorption capacity. Especially this properties are widely used for safety demands of architecture, auto and aircraft industry. But metal foam need to increased its compression strength and hardness. This study were researched about Al-Si alloy foams with variation amount of Si contents for their fabrication and properties such as porosity, cell structure, microstructure and mechanical properties. The result are that the range of pore size is 2~4 $mm{\phi}$, the high porosity are 88%, high yield strength is 1.8MPa, the strain ratio is 60~70% and vickers hardness is 33.1~50.6.

Keywords

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