Austenite grain size influencing factors
The size of austenite grains will affect the transformation of the steel during cooling and the properties of the transformation products. After the steel is hot processed (casting, forging, welding, etc.), the austenite grains are often coarse and uneven, which greatly reduces the mechanical properties of the steel and is not conducive to the final heat treatment. Recrystallization can be used to refine the austenite crystals. grain.