Alireza Behvar, Fillipo Berto, Meysam Haghshenas

A review on isothermal rotating bending fatigue failure: Microstructural and lifetime modeling of wrought and additive manufactured alloys

  • Mechanical Engineering
  • Mechanics of Materials
  • General Materials Science
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AbstractThe cumulative effect of many incidents that are brought about by an increase in temperature establishes an environment in which premature failure (including fatigue failure) becomes a challenging issue. Isothermal rotating bending fatigue (IT‐RBF) testing may simulate industrial components' high temperatures and rotating environments. This state‐of‐the‐art review paper covers the current research on IT‐RBF failure in wrought and additive‐manufactured alloys, focusing on microstructural and lifetime models. The article emphasizes the need of using microstructural information in fatigue life models to better represent complex material structure‐failure behavior associations. Additive‐manufactured alloys contain unique microstructural characteristics and processing‐induced defects making fatigue modeling difficult. The paper concludes with implications for industrial fatigue‐resistant alloy development. It emphasizes the necessity for a multidisciplinary approach that integrates materials science, mechanics, and data science to optimize these materials under cyclic loads. The review concludes by proposing future research and innovation in this subject.

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