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众所周知,Mg-Mn 系和 Mg-Zn-Zr 系合金是工业上常用的变形镁合金,一般以板、棒、型材和锻件提供和使用。上述两系的合金虽然各有不同的优点,但它们的共同缺点是室温强度不高,其中最强的合金 MB15,室温强度也只有33～34公斤/毫米~2;高温瞬时强度偏低,并且随着工作温度升高而急剧下降,通常仅能在150℃以下工作。随着航空和宇航事业的迅速发展,现有工业变形镁合金已不能满足
It is well-known that Mg-Mn and Mg-Zn-Zr alloys are the most commonly used deformed magnesium alloys in industry and are generally supplied and used in the form of plates, rods, profiles and forgings. Although the above two alloys have different advantages, their common shortcomings are that the room temperature strength is not high, and the strongest alloy MB15 has a room temperature strength of only 33 to 34 kg / mm 2; the high-temperature transient strength is low, and With the working temperature increases and the sharp decline, usually only 150 ℃ below work. With the rapid development of aviation and aerospace industry, the existing industrial deformation of magnesium alloy has been unable to meet