Remaining useful Life Prediction Methodology for Ferritic Steel Aged in Components of Thermal and Nuclear Power Plant

Extrapolating creep failure data to longer times has been extensively studied over the past six decades. In many industrial applications, high-temperature components are designed for service life’s much longer than those typically covered by experimental creep data. As a result, it becomes necessary to predict stress and temperature requirements for long-term service life based on much shorter-term data. While interpolation and correlation of creep-rupture data can be done with confidence within the temperature and stress ranges covered by experimental data, extrapolation to significantly longer rupture times often yields less accurate results, increasing the potential for error. [1]. There are several parametric methods for predicting the useful life of the components, such as the…