Microwave Sintering of Aluminum Alloys
نویسندگان
چکیده
Until 2000 almost all research in the microwave sintering area was confined to non-metallic materials. However, after the first report by Penn State in 1999 on full sintering of steel powders in microwave, now in the last few years there has been increasing interest in applying microwave energy for processing of variety of metallic materials. The present study is an extension of this work and relates to the sintering behavior of aluminum alloy powders. Blended 2712 (Al-Cu-Mg-Si-Sn) and 6711 (Al-Mg-SiCu) alloy powders were consolidated by microwave sintering through temperature range of 570 to 630 °C for 1 hr in vacuum, nitrogen, argon and hydrogen atmospheres. The influence of sintering temperature and atmosphere on densification response were investigated in comparison with conventional sintered parts. Microwave sintering enhanced the densification response in shorter times and lower sintering temperature in turn leading to better properties.
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