摘要
低周疲劳是汽轮机设计和运行中考虑的重点。针对国产 2 0 0 MW机组汽轮机转子上广泛使用的 30 Cr2 Mo V钢材料进行了常温和高温 550℃下应变控制低周疲劳试验。在试验的基础上得到了该材料的低周疲劳特性参数、循环应力 -应变曲线和具有95%置信度 ,误差限为 5%的应变 -寿命曲线 。
Low cycle fatigue(LCF)is an important consideration in the design and operation of steamturbines.The LCF characteristic of 30Cr2MoV steel as steam turbine rotor material,are tested at room\|temperature and 550℃.The cycle stress\|strain characteristic and curves of the material are obtained.The relationship between the total strain amplitudes and the failure lives with 95% reliabilities and 5% error limits is acquired.The qualitative relationship between hardness and damage life is investigated.
出处
《现代电力》
2001年第4期15-19,共5页
Modern Electric Power
基金
国家电力公司重大科技项目
