Explanation

Heat the alloy materials to an appropriate temperature and keep it for a long enough time to make the second phase dissolve into the matrix solid solution to obtain solid solution with uniform composition and structure, and then rapidly cool it to room temperature for heat treatment. When the heating temperature is high enough to obtain the same single solution, it is called complete solution treatment; On the contrary, if some of the second phase is not solid solution, it is called incomplete solution treatment. After solution treatment, the structure of alloy at room temperature is usually metastable equilibrium, and the second phase will be desolvated and precipitated under appropriate temperature or stress conditions. solution treatment is usually a kind of pre heat treatment, which can prepare for further heat treatment.

Classification