利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN101871066A 一种含锡与锌的高强韧性镁合金及其制备方法 无效 - 驳回

一种含锡与锌的高强韧性镁合金及其制备方法
摘要：
本发明涉及一种新型含锡(Sn)与锌(Zn)的高强韧性镁合金及其制备方法，属于金属材料类及冶金领域，解决现有技术中AZ91系列合金普遍存在塑性较差的问题，以及AM60/50合金存在强度不高的缺陷。镁合金的组分及重量百分比为：1-5％Sn，4-6％Zn，剩余部分为Mg和不可避免的杂质。熔炼过程在气体保护下进行，将工业纯美熔化后，分别加入纯Sn、纯Zn，等合金元素完全溶解后精炼，保温除渣后进行铸造。本发明合金在铸态下，抗拉强度σb达到220-242MPa，屈服强度σ0.2达到68-91MPa，延伸率δ达到12-16％，具有高的抗拉强度与优良的塑性。本发明合金在固溶+时效处理后，抗拉强度σb达到290MPa，屈服强度σ0.2达到226MPa，延伸率δ达到11％。
摘要（英）：

The invention relates to a novel high-obdurability magnesium alloy comprising tin (Sn) and zinc (Zn) and a preparation method thereof, belongs to the field of metal materials and metallurgy and solves problems of bad plasticity existing commonly in the AZ91 series alloy and low strength of the AM60/50 alloy in the prior art. The magnesium alloy comprises the following components in percentage by weight: 1 to 5 percent of Sn, 4 to 6 percent of Zn and the balance of Mg and unavoidable impurities. The preparation method comprises the following steps: carrying out smelting process under the gas protection; after industrial pure magnesium is smelted, respectively adding pure Sn and pure Zn; carrying out refining after the alloying elements are completely dissolved; and carrying out forging after preserving heat and deslagging. In the as-cast state, the alloy of the invention has 210 to 242 MPa of tensile strength sigma b, 68 to 91 MPa of yield strength sigma 0.2 and 12 to 16 percent of elongation delta, has high tensile strength and excellent plasticity. After being subjected to solid solution and aging treatment, the alloy of the invention has 290 MPa of tensile strength sigma b, 226MPa of yield strength sigma 0.2 and 11 percent of elongation delta.

0/0