Effect of B 4 C Content on the Sintering Characteristics of 6061Al-B 4 C Composite Powder

In the present work, 6061 Al- sintered composites containing different contents were fabricated and their characteristic were investigated as a function of sintering temperature. For this, composite powders and their compacts with various contents from 0 to 40 wt.% were fabricated using a planetary ball milling equipment and cold isostatic pressing, respectively, and then they were sintered in the temperature ranges of 580 to . Above sintering temperature of , real density was decreased due to the occurrence of sweat phenomena. In addition, it was realized that sinterability of 6061Al- composite material was lowered with increasing content, resulting in the decrease in its real density and at the same time in the increment of porosity.