超(超)临界锅炉钢的相稳定性与相定量及持久寿命预测方法的研究

复相分离方法可以在电子探针/扫描电镜-能谱分析条件下对超(超)临界锅炉钢块状样品的析出相成分及其数量进行定量分析，以揭示其供货态钢管样品的相稳定性，以及持久断裂试样的相状态，并可反映相成分及其数量参量与持久寿命的对应关系；人工神经网络模型可以预测多元成分与热处理工艺参量及试验条件(温度及应力)改变时，9。～12。Cr铁素体耐热钢的持久寿命。介绍了以上方法的基本原理及其作用，并列举了若干应用实例，期望能为有关工作提供参考。

Study on Stability and Quantification of Phases and Creep-rupture Life Prediction Method for(ultra) Super-critical Boiler Steels

With the use of proposed multi-phase separation method(MPSM),compositions and quantities of precipitated phases in(ultra) super-critical boiler steels can be determined for phase quantification analyses under SEM-EPMA/EDS conditions,which can reveal phase stability of as-received steel tube/pipe samples and phase status of the creep-ruptured samples,as well as reflect the corresponding relations of phase chemistries and quantities to creep-rupture lives of the steel samples investigated.Through the applicat...