Method for predicting creep life of nickel-based superalloy

• Main Authors: ZHANG HAIJUN, XU BIN, HUANG XIWEI, ZHAO YANPING, YIN HAIQING
• Format: Patent
• Language: Chinese; English
• Published: 12.08.2022
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention relates to the technical field of nickel-based alloy creep, and provides a nickel-based high-temperature alloy creep life prediction method which comprises the following steps: constructing a nickel-based high-temperature alloy data set; constructing an empirical formula model combining a Marson-Miller parameter method and a thermal strength parameter comprehensive equation; constructing an SVM (Support Vector Machine) model; constructing a Gaussian process regression model; a weighted average method in ensemble learning is used for the three models to obtain an ensemble model; and obtaining an alloy creep life prediction value of the specific nickel-based alloy under the conditions of specific temperature and specific tension by utilizing the integrated model. The advantages of a traditional mode and a modern machine learning model are integrated, and the advantages of all the models are exerted. Compared with a single model, the method for predicting the creep life of the nickel-based superall