Issue 43

F. Berto et alii, Frattura ed Integrità Strutturale, 43 (2018) 1-32; DOI: 10.3221/IGF-ESIS.43.01 15 Figure 17: Synthesis by means of local SED of un-notched specimens’ data under pure torsion. Fatigue at high temperature In recent years, the interest on fatigue assessment of steels and different alloys at high temperature has increased continuously [111-121]. In fact, high-temperature applications have become ever more important in different engineering fields, e.g. turbine blades of jet engine, nuclear power plant, molds for the continuous casting of steel, hot rolling of metals. In parallel, in order to bear mechanical loadings combined with critical conditions at high temperature, the development and testing of innovative materials has progressed substantially [122]. Among the traditional alloys available for this kind of applications, Cu-Be alloys surely stand out and fall within the most interesting materials suitable not only for high-temperature applications (Fig. 20). Figure 18: Synthesis by means of local SED of V-notched specimens’ data.