Technics of Direct Quenching for 14Cr1MoR Steel Plate
The combination technics of controlled rolling and direct quenching for pressure vessel steel was studed. The results show that elements such as Cr and Mo can promote the hardenabillity, which make it easier for direct quenching. Sufficient deformation per pass bring about fully recrystallization, which refines the recrystal grain. Hihger deformation rate in non-recrystallization anstenite region increase the number of the nucleating points of martensite. Martensite lath changes into fine tempered sorbite with favorable mechanical properties after high tempreture tempering.