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中国发明专利申请公开说明书CN1814837中公布了一种高强度耐热Mg合金制备技术。该合金主要含有(质量分数)Y 3%～12%、Sm2%～6%、Zr 0.35%～0.8%,Si、Fe、Cu或Ni元素含量不超过0.02%。该合金的制造方法是:将纯Mg和母合金(Mg-Zr、Mg-Y和Mg-Sm)预热至180～220℃,在保护气氛下使纯Mg熔化;在720～740℃向纯Mg中加入Mg-Y和Mg-Sm合金,加热至750～770℃后加入Mg-Zr合金;待合金全部熔化后,除去浮渣;然后精练、保温、冷却、铸造;在500～550℃进行6～12 h固溶热处理;在175～250℃时效处理6～50 h。
Chinese invention patent application publication CN1814837 discloses a high-strength heat-resistant Mg alloy preparation technology. The alloy mainly contains (by mass fraction) Y 3% to 12%, Sm2% to 6%, Zr 0.35% to 0.8% and Si, Fe, Cu or Ni not more than 0.02%. The alloy is produced by preheating pure Mg and master alloys (Mg-Zr, Mg-Y and Mg-Sm) to 180 to 220 ° C, melting the pure Mg under a protective atmosphere, Adding Mg-Y and Mg-Sm alloy to Mg, adding Mg-Zr alloy after heating to 750-770 DEG C, removing all the dross after all the alloy is melted, then refining, keeping warm, cooling and casting; carrying out at 500-550 DEG C 6 ~ 12 h solution heat treatment; aging treatment at 175 ~ 250 ℃ 6 ~ 50 h.