Some effects of small amounts of Be on Al-10%Mg alloys
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Adding small amounts of Be or Li to Al-10%Mg alloys, Mg loss and formation of dross in melting, and oxidation in heating have been examined. Results obtained were as follows:1) With Be added to Al-10%Mg alloy, Mg loss after keeping at 800°C for 15 hours, was not more than about 5%, but without Be, it reached about 60% under the same conditions.2) Li gave a little favorable effect to the original alloy, however, the effect, was not so remarkable as that of Be.3) On the surface of casting of the Be-added alloy, annealed at 400°C for 5 hours, the black film was not found.4) From the results of X-ray examination, it was found that the black dross or black film, formed during melting or heat-treatment, consisted of Al, MgO and γ-Al2O3, but not of Mg-Nitride.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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