V-substituted Fe reinforced hypoeutectic aluminum-silicon alloy and preparation method thereof

• Main Authors: YAN RUIFANG, QIN RONG, MA PINKUI, GUAN ZHIPING, DONG ZHONGQIANG, WANG JINGUO
• Format: Patent
• Language: Chinese; English
• Published: 27.08.2021
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to a V-substituted Fe reinforced hypoeutectic aluminum-silicon alloy and a preparation method thereof, and belongs to the technical field of cast metal materials. The technical problem that in the prior art, the mechanical property of an aluminum alloy can be reduced due to existence of an iron element is solved. The V-substituted Fe reinforced hypoeutectic aluminum-silicon alloy disclosed by the invention comprises the following components of, in percentage by weight, 7%-9% of Si, 0.35%-0.75% of Fe, 0.08%-0.15% of Cu, 0.4%-0.8% of Mg, 0.05%-0.3% of V, 0.03%-0.15% of Sr and the balance Al and inevitable impurity elements. The mechanical property of the hypoeutectic aluminum-silicon alloy is greatly improved, the yield strength of the alloy can be improved by 11.4%-25.0%, the tensile strength of the alloy can be improved by 21.8%-27.6%, and the elongation of the alloy can be improved by 116.0%-118.9%. 本发明涉及一种V代Fe强化亚共晶铝硅合金及其制备方法，属于铸造金属材料技术领域。解决了现有技术中铁元素的存在会降低铝合金的力学性能的技术问题。本发明的V代Fe强化亚共晶铝硅合金