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    孙建强, 钟润萍, 王文焱, 张仁元. 铍对Al-34%Mg共晶合金高温氧化行为的影响[J]. 机械工程材料, 2009, 33(5): 66-69.
    引用本文: 孙建强, 钟润萍, 王文焱, 张仁元. 铍对Al-34%Mg共晶合金高温氧化行为的影响[J]. 机械工程材料, 2009, 33(5): 66-69.
    shu
    SUN Jian-qiang, ZHONG Run-ping, WANG Wen-yan, ZHANG Ren-yuan. Effects of Beryllium on High Temperature Oxidation Behavior of Al-34%Mg Eutectic Alloys[J]. Materials and Mechanical Engineering, 2009, 33(5): 66-69.
    Citation: SUN Jian-qiang, ZHONG Run-ping, WANG Wen-yan, ZHANG Ren-yuan. Effects of Beryllium on High Temperature Oxidation Behavior of Al-34%Mg Eutectic Alloys[J]. Materials and Mechanical Engineering, 2009, 33(5): 66-69.
    shu

    铍对Al-34%Mg共晶合金高温氧化行为的影响

    Effects of Beryllium on High Temperature Oxidation Behavior of Al-34%Mg Eutectic Alloys

      摘要
    • 摘要: 为提高铝镁合金的高温抗氧化性能,以合金化的方式在Al-34%Mg共晶合金中添加不同含量的铍元素,将所得合金分别于空气中在420 ℃进行准连续恒温氧化试验和从470 ℃到室温循环氧化试验,对其氧化行为进行了研究.结果表明:加入微量(≥0.01%)铍能提高共晶合金在固、液态时的高温抗氧化能力,并能改善氧化层的粘附性与自愈能力;含有BeO的氧化膜大大降低了合金表面氧化物的生长速度.

       

      Abstract: The Al-Mg alloy containing 34% Mg was added with different beryllium contents in the form of alloying for increasing the high temperature oxidation resistance.The obtained samples were oxidized in isothermal quasi-continuousness at 420 ℃ and in cyclic from 470 ℃ to room temperature in air and the oxidation behavior was analyzed.The results show that the high temperature oxidation resistance of the alloy with trace content (≥0.01%) of Be in solid state and in liquid state was enhanced and the adhesion and self-cure capability of oxide flims were improved.The growth rate of the oxide films with BeO was greatly decreased on the surface of the alloys.

       

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