The combined effect of V and RE can delay the dynamic recrystallization, refine the grain and second phase particles, and promote the precipitation of V( C, N) considerably.

• 钒和稀土复合微合金化有更强的推迟形变奥氏体动态再结晶，抑制奥氏体晶粒长大和细化晶粒的作用。