Determination of initiation fracture toughness ( J i ) from the stretch zone parameters in low carbon austenitic stainless steel
Estimating the initiation fracture toughness ( J i ) of ductile strain-hardening materials is challenging because of extensive crack blunting. This study proposes a stretch zone (SZ)-based approach for estimating J i using stretch zone width (SZW) and height (SZH), determined by FE-SEM fractography and...