The results show that the properties of low-cycle fatigue,static and dy-namic fracture tougliness of 15MnNi forging steel cai,meet the requirements in ASME code,This material has good comprehensive mechanical properties.

• 结果表明，15MnNi锻钢的低周疲劳和动、静态断裂韧度满足ASME规范要求，该材料具有良好的综合力学性能。