Fl Crack !full! Jun 2026

An FL crack is a type of interfacial failure that occurs during or immediately after the welding process. It commonly occurs in dissimilar metal welding (e.g., combining Ni-Fe base metal with SUS316 stainless steel).

FL cracks represent a significant metallurgical challenge, particularly in dissimilar welding. They occur at the fusion line due to inadequate bonding, often driven by solidification issues. Effective control involves optimizing welding geometry and filler metallurgy to prevent stress concentration and brittle phase formation, ensuring the long-term reliability of welded structures. fl crack

Understanding FL Cracks: Causes, Mitigation, and Structural Impact An FL crack is a type of interfacial

FL cracks serve as crack initiation sites, significantly reducing the fatigue life of components subjected to fluctuating loads. fl crack