35MnVN非调质钢高温形变再结晶行为

Recrystallization Behavior of Un-quenched and Tempered Steel 35MnVN during Deformation at High Temperature

研究了热锻非调质钢 35MnVN的高温形变再结晶行为及形变工艺对金相组织的影响 .结果表明 ,35MnVN钢发生再结晶的临界形变量较大 ,在 95 0℃以下形变时为未再结晶区形变 ,在 115 0℃以上较大形变量时才可能发生完全再结晶 .不同形变工艺条件下 ,室温组织中铁素体、珠光体与贝氏体的形态及数量不同 。

The recrystallization behavior during high temperature deformation and the effect of deformation processes on microstructures of hot forged un quenched and tempered steel 35MnVN was investigated. The experimental results show that a larger critical deformation degree is needed for occurrence of recrystallization of 35 MnVN steel. The deformation below 950℃ is in un recrystallization region, and the complete recrystallization occurs only under the condition of relatively large deformation above 1150℃. The morphology and the amount of ferrite, pearlite and bainite at room temperature are different under different deformation precesses, and the amount of bainite decreases with increasing the degree of deformation.