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本文讨论了一种在Ａｌ２８合金基础上开发的铝合金，它含４－５～５－８Ｍｇ，０－４～０－８Ｍｎ，０－０５～０－０８Ｔｉ和０－０２～０－０６Ｂｅ。该合金在铍熔解期间形成致密的Ｂｅ－Ｍｇ氧化物膜，它可防止金属铝被氧化。该合金的组织特征为铝的α固溶体加上以金属间化
This article discusses an aluminum alloy developed on the basis of Al28 alloy containing 4-5 to 5-8 Mg, 0-4 to 0-8 Mn, 0-05 to 0-08 Ti and 0-02 to 0-06 Be. The alloy forms a dense Be-Mg oxide film during beryllium melting, which prevents the aluminum metal from being oxidized. The microstructure of this alloy is characterized by an alpha solid solution of aluminum plus intermetallics