NOVEL MG-AL-TIB₂-RARE EARTH ELEMENT INTERMEDIATE ALLOY AND PREPARATION METHOD THEREFOR

摘要

A Mg-Al-TiB₂-rare earth element intermediate alloy, which comprises Mg: 20-25 mass%, TiB₂: 3-5.5 mass%, a rare earth element: 0.1-0.25 mass%, and the remainder being Al and unavoidable impurities. The magnesium-aluminum intermediate alloy material allows the strength to be increased from 200-300 MPa to 330-415 MPs, and also allows the hardness and stretchability to be significantly improved. Also related is a method for use in producing the magnesium-aluminum intermediate alloy.