|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Advanced High-strength Steels
||Relationship of Grain Size and Deformation Mechanism to the Fracture Behavior in High-strength High-ductility Nanostructured Austenitic Stainless Steel
||Devesh Misra, Yashwanth Injeti
|On-Site Speaker (Planned)
We underscore the dependence of grain structure and deformation mechanism on the fracture behavior in a high strength–high ductility bearing nanograined/ultrafine-grained austenite stainless steel. In high strength nanograined steel, deformation twinning contributed to excellent ductility, while in the low strength coarse-grained steel, the high ductility was attained as a consequence of strain-induced martensite transformation. Interestingly, the differences in deformation mechanism of steels with different grain structure but with similar elongations influenced the mode of fracture, a behavior that was governed by the change in austenite stability with grain size.
||Planned: Supplemental Proceedings volume