The effect of initial grain size on the strength property of copper with gradient microstructure

Mechanical and Corrosion Behavior of a Composite Gradient-Structured Cu-Fe Alloy

“…For a rolled plate with a reduction of 60%, the tensile strength rapidly increased from 340 MPa (as-cast) to 483 MPa, while the elongation decreased from 18.9% (as-cast) to 6.1% [28]. However, the gradient-structured material offers the potential for achieving high strength-ductility synergy [29][30][31][32]. In a gradient-grained structure, plastic deformation initially activates in the coarse grains and then propagates into smaller grains as the applied load increases.…”