About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Ultrafine-grained and Heterostructured Materials (UFGH XI)
|
Presentation Title |
Grain Refinement-induced Plasticity in Heterostructured Brass |
Author(s) |
Xiaolei Wu, Yuntian Zhu |
On-Site Speaker (Planned) |
Xiaolei Wu |
Abstract Scope |
Grain refinement in metals has been extensively explored for improving strength, but seldom occurs during tensile deformation. Here we report dynamic grain refinement in heterostructured brass during tensile testing, which enabled high tensile plasticity (ductility), namely the grain refinement-induced plasticity (GRIP). The grain refinement was realized by forming nanograins via deformation twinning at grain boundaries, which produced sustained strain hardening to enhance ductility and facilitate plastic strains at grain boundaries. The GRIP effect may become another important strategy for designing strong and tough metals. GRIP may also exist in other heterostructured fcc alloys and some hcp metals of low SFE, which needs further investigation. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume |