含钛钢的奥氏体晶粒粗化与再结晶参数

Austenite Grain Coarsening and Recrystallization Parameters of Steel Containing Titanium

摘要: 研究了3种不同含Ti量(0.04%-0.16%Ti)钢奥氏体晶粒粗化温度及热轧后奥体再结晶的行为。在950-1200℃加热,含0.04%Ti钢奥氏体晶粒最小,其晶粒开始粗化温度在1 150℃以上。得出含Ti钢开始再结晶的临界形变率(ε_c)与原始奥氏体晶粒直径(D₀)、轧制温度(T)间定量关系。

Abstract: The temperature of austenite grain coarsening and recrystallization parameters in steels containing 0.04%-0.16% Ti have been investigated.Experimental results show that after heating at 950-1 200℃,austenite grain size in 0.04% Ti-steel was the finest, and the temperature of grain coarsening was above 1 150℃.The quantitative relationship between the critical reduction for austenite recrystallization ε_c and initinal austenite grain size D_o at rolling temperature T has been obtained