作者
YF Wang, CX Huang, Q He, FJ Guo, MS Wang, LY Song, YT Zhu
发表日期
2021/11/24
图书
Heterostructured Materials
页码范围
239-250
出版商
Jenny Stanford Publishing
简介
This chapter reports the formation of dispersive shear bands in a hetero-structured Cu composed of coarse-grained (CG) and ultrafine-grained (UFG) zones. Microscale digital image correlation revealed that dense shear bands evolved in a stable manner over the whole gauge section. It has been recently reported that heterostructures with coarse-grained (CG) soft zones embedded in UFG or NS matrix can produce high strength while retaining reasonable ductility. Microstructure of the as-processed samples was characterized using electron back-scattered diffraction (EBSD) under an FEI Quanta 3D FEG instrument. The heterostructure induced the formation of dense and dispersive stable SBs in UFG/CG heterostructured Cu sample during tensile tests. The low strain hardening capability of UFG zone is a prerequisite for the nucleation of SBs. The long-range internal stress induced by elastic/plastic interaction …
引用总数
20202021202220232024715162114
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