(重庆大学 材料科学与工程学院, 重庆 400044)
摘 要: 研究发现Al-Mg-Si合金直接氧化时存在层状Al/Al2O3复合结构,揭示了直接氧化过程的本质特征,证实了Mg挥发对直接氧化过程的重要作用,提出了Mg挥发机制并据此讨论了已有研究中尚未解决的几个重要问题。
关键字: 金属直接氧化;挥发;镁;层状复合
directed metal oxidation
(College of Materials Science and Engineering,
Chongqing University, Chongqing 400044, China)
Abstract:The lamellar structures of Al/Al2O3 composite and the basic characteristics of directed metal oxidation in Al-Mg-Si alloy were discovered, the importance of the volatilization of magnesium to the process of directed metal oxidation was identified, and the volatilization mechanism of magnesium was put forward. By means of the model, the several important items were discussed.
Key words: directed metal oxidation; volatilization; magnesium; lamellar composite