In contrast,with SDH13 steel which has been high temperature homogenized and ultrafined the bulk-shaped eutectic carbides will be eliminated,composition segragation and shape and di...

• 而采用高温均匀化和超细化等工艺处理SDH13钢,则消除了大块共晶碳化物,改善了偏析和碳化物的形态及分布,细化了组织,从而提高了模块的心部强韧性和模具的使用寿命。