Abstract
The underlying mechanism of dislocation substructure formation in a tensile deformed fine-grained high-Mn steel is reported using transmission electron microscopy. A cross-slip assisted dislocation truncation mechanism was revealed that formed strings of dislocation loops at early strain, which were also retained at fracture strain. Planar glide producing a Taylor lattice was also observed. The dislocation plasticity based on a cross-slip based mechanism delayed dynamic recovery in stage C to manifest an uniform strain hardening. Such a mechanism producing good combination of high strength and ductility is observed for the first time in high-Mn steel.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
