Preparation Technique of Metallographic Sample of Aluminum-silicon Alloy

During the preparation of metallographic samples of aluminum-silicon alloy, the phenomenon of silicon particles falling off under low pressure is easy to appear on the grinding surface of aluminum-silicon alloy, and the micro scratch is difficult to eliminate, which is easy to cause false appearance. The basic operation of metallographic sample preparation of aluminum-silicon alloy and the solutions to common problems are analyzed and summarized in order to provide reference for physical and chemical testing workers.