Rare-earth-containing cast aluminum alloy for passenger vehicle hub and hub preparation method

• Main Authors: GAN PEIYUAN, YANG PENGXI, JI JUNYU, HE YUSONG, TAN HAIXIANG, FANG XIAOMING, HUANG YUFENG, WEI SHIQIANG, WANG LONGBIN, WEI DESHI
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a rare earth-containing cast aluminum alloy for a passenger car hub, which is characterized by comprising the following components in percentage by mass: 6.0 to 8.0 percent of Si, 0.3 to 0.8 percent of Mg, 0.08 to 0.4 percent of Fe, 0.05 to 0.4 percent of Zn, 0.05 to 0.3 percent of Mn, 0.05 to 0.3 percent of Cr, 0.05 to 0.2 percent of Ti, 0.03 to 0.15 percent of Ni, 0.03 to 0.15 percent of V, 0.03 to 0.15 percent of Mo, 0.03 to 0.15 percent of Zr, 0.01 to 0.05 percent of Sr, 0.01 to 0.05 percent of B, 0.03 to 0.6 percent of rare earth element, less than or equal to 0.03 percent of single impurity element, less than or equal to 0.15 percent of total impurity element and the balance of aluminum, and the rare earth element is one or a combination of two of La, Ce, Y and Er. The rare earth-containing cast aluminum alloy for the passenger vehicle hub has high strength and plasticity, and can effectively improve the mechanical property of the hub when being used for casting the passenger veh