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硅铝明是在铝-硅系合金中加入少量的铜、镁、锰等合金元素,其目的是提高机械性能。这些合金元素大部分溶于基体而形成固溶体,只有极少量呈共晶状态存在;唯有硅却大量地呈共晶状态存在于基体中。因此对于硅铝明热处理问题的研究,可简单地以铝硅系平衡图作基础。根据铝-硅系平衡图,对于硅铝明的热处理主要是加热到一定的温度,使一部分硅溶解于基体中(当然其他合金元素亦同时溶入),随后快速冷却,造成硅在铝中的过饱和固溶体;在自然时效或人工时效时,达到分
Silicium is in the aluminum - silicon alloy by adding a small amount of copper, magnesium, manganese and other alloying elements, the purpose is to improve the mechanical properties. Most of these alloying elements dissolved in the matrix to form a solid solution, only a very small amount of eutectic state exist; only a large number of silicon was eutectic state in the matrix. Therefore, the study of the problem of heat treatment of aluminum and aluminum can be simply based on aluminum-silicon balance diagram. According to the Al-Si balance diagram, the heat treatment for sialon is mainly heated to a certain temperature, so that part of the silicon is dissolved in the matrix (of course, other alloy elements are also dissolved at the same time) and then rapidly cooled to result in silicon in aluminum Saturated solid solution; in the natural aging or artificial aging, reaching points