Keywords Orthogonal cutting;Sawtooth chip;Adiabatic shear band;Deformed band;Transformed band;Microstructure;Dynamic recrystallization;Dynamic ductile fracture;Microvoid;

• 正交切削;锯齿形切屑;绝热剪切带;形变带;转变带;微结构;动态再结晶;动态韧性断裂;微孔洞;