【摘要】 阐述了国产低压转子钢30Cr2Ni4MoV不同温度的低周疲劳性能、裂纹扩展速率和断裂韧度,提出了可用于疲劳设计和安全性评价的疲劳断裂性能数据和相应的数学表达式。更多还原

【Abstract】 The low - cycle fatigue performance, crack propagation rate and fracture toughness of chinese - made low -pressure rotor steel 30Cr2Ni4MoV at different temperatures are discussed,and fatigue fracture performance data and corresponding mathematic expressions are presented for fatigue design and safety evaluation use.更多还原