Characterization by EBSD of Antimony-calcium Rich Phases Formed during Purification of Aluminum Scrap  

作　　者：MUIZ Rodrigo FLORES Alfredo ORTIZ Juan RODRíGUEZ Nelly MARTíNEZ Fernando LUNA Jesús OROZCO Pilar 

机构地区：[1]Faculty of Engineering, Autonomous University of Coahuila, Camporedondo Unit [2]CINVESTAV Saltillo Unit [3]Department of Metal Mechanics, Technological Institute of Saltillo [4]Faculty of Engineering, Autonomous University of Zacatecas

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2013年第4期647-649,共3页武汉理工大学学报（材料科学英文版）

摘　　要：We studied the influence of antimony on the modification rate of the silicon eutectic with sodium and/or strontium for castiig of A1-Si alloys, and introduced controlled Ca and Sb to the system and studied the resulting compounds, which were determined to be CazSb and A1Sb. Scanning electron microscopy together with the complementary technique of electron backscatter diffraction （EBSD） were used to characterize the materials. The experimental results provided the basis for us to establish that antimony removal from AI occurs mainly through the reaction （Sb）A1 ＋ 2Ca = Ca^Sb ＋ A1.We studied the influence of antimony on the modification rate of the silicon eutectic with sodium and/or strontium for castiig of A1-Si alloys, and introduced controlled Ca and Sb to the system and studied the resulting compounds, which were determined to be CazSb and A1Sb. Scanning electron microscopy together with the complementary technique of electron backscatter diffraction （EBSD） were used to characterize the materials. The experimental results provided the basis for us to establish that antimony removal from AI occurs mainly through the reaction （Sb）A1 ＋ 2Ca = Ca^Sb ＋ A1.

关 键 词：aluminum alloys antimony contamination modification 

分 类 号：X705[环境科学与工程—环境工程]