Low-cost high-speed-extruded magnesium alloy material and preparation process thereof

• Main Authors: MA YUEQUN, CHEN RONGSHI, KE WEI, JIANG MINGGUANG, YAN HONG, HOU DANHUI
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2017
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a low-cost high-speed-extruded magnesium alloy material and a preparation process thereof and belongs to the technical field of metal materials. The extruded material comprises the following chemical components by weight percent: 0.1-0.9% of Zn, 0.1-0.5% of Ca, 0-0.5% of Mn and the balance Mg and inevitable impurities, wherein the total content of the alloy elements (Zn, Ca and Mn) does not exceed 1.5 wt%. Production is performed at the extrusion outlet speed of more than or equal to 24 m/min, the extrusion production efficiency is high, the cost of the extruded material is lowered, the extruded material is smooth in surface and has no surface cracks, and therefore, the yield of the extruded material is guaranteed; and meanwhile, the extruded material has a weak non-basal texture with the maximum density value of less than or equal to 4. The extruded material is low in content of alloy elements, does not contain rare earth elements or other noble metal elements, and therefore, is low i