发明名称 High-strength, high-toughness, weldable and deformable rare earth magnesium alloy
摘要 A high-strength, high-toughness, weldable and deformable rare earth magnesium alloy comprised of 0.7˜1.7% of Ym, 5.5˜6.4% of Zn, 0.45˜0.8% of Zr, 0.02% or less of the total amount of impurity elements of Si, Fe, Cu and Ni, and the remainder of Mg, based on the total weight of the alloy. During smelting, Y, Ho, Er, Gd and Zr are added in a manner of Mg—Y-rich, Mg—Zr intermediate alloys into a magnesium melt; Zn is added in a manner of pure Zn, and at 690˜720° C., a round bar was cast by a semi-continuous casting or a water cooled mould, then an extrusion molding was performed at 380˜410° C. after cutting. Before the extrusion, the alloy is treated by the solid-solution treatment at 480˜510° C. for 2˜3 hours, however, the alloy can also be extrusion molded directly without the solid-solution treatment. After the extrusion molding, this alloy has a strength of 340 MPa or more and a percentage elongation of 14% or more at room temperature and is a high-strength, high-toughness, weldable and deformable rare earth magnesium alloy.
申请公布号 US7708937(B2) 申请公布日期 2010.05.04
申请号 US20080105165 申请日期 2008.04.17
申请人 CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES 发明人 MENG JIAN;FANG DAQING;ZHANG DEPING;TANG DINGXIANG;LU HUAYI;ZHAO LIANSHAN;SUN WEI;QIU XIN;ZHANG HONGJIE
分类号 C22C23/06;C22C23/00 主分类号 C22C23/06
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