ABSTRACT

High-temperature alloy is usually applied to aircraft engine and heavy duty gas turbine hot end components. These components are often operated at a high-temperature environment. The material creep failure of the hot components under high temperature and harsh environment is one of the key issues in a high-temperature structural strength field. In the design criteria, the creep deformation of the structure in service should not exceed the allowable requirements. In order to meet the design criteria, the creep model in creep deformation analysis should well reflect the creep behavior of materials. Therefore, research on the material creep model is particularly important.