Microscopic and nanoscopic observations of metallurgical structures around inclusions at interior crack initiation site for a bearing steel in very high‐cycle fatigue

Abstract In some high‐strength steels, a fatigue crack tends to occur at the interior inclusion after a long‐term sequence of the cyclic loadings at low stress levels, although the crack takes place at the surface in the usual life region at high stress levels. Thus, we have the duplex S–N curves co... View More