“…Inclusion‐induced LCF crack initiation mainly includes inclusion/matrix interface cracking, inclusion cracking, and slip band or grain boundary cracking in the matrix surrounding the inclusion 6–8,10,14–16,18–20 . The crack initiation sites can be divided into surface, subsurface, and interior of the specimen 6,21,22 . The specific type and location of LCF crack initiation depend on inclusion size, morphology, and distribution, 14,21,23–25 material surface stress and strain state, 5,22 as well as loading conditions and temperatures 6,21 .…”