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Comparison of microstructures and mechanical properties of a Cu–Ag alloy processed using different severe plastic deformation modes
Ist Teil von
Materials science & engineering. A, Structural materials : properties, microstructure and processing, , Vol.528 (13), p.4331-4336
Ort / Verlag
Kidlington: Elsevier B.V
Link zum Volltext
Quelle
ScienceDirect Journals (5 years ago - present)
Beschreibungen/Notizen
► The microstructures of the Cu–Ag alloy can be refined to different levels by these SPD modes and the highest strength of 1.1
GPa was obtained by HPT after 5 revolutions. HPT is most effective in refining and strengthening the two-phase Cu–Ag alloy. The results demonstrate the yield strength and microhardness are inter-related over a wide range of values.
A Cu–8
wt.% Ag alloy was processed by equal-channel angular pressing (ECAP), dynamic plastic deformation (DPD) and high-pressure torsion (HPT) at room temperature, and the microstructures and mechanical properties were investigated. It is shown that the microstructures of the Cu–Ag alloy can be refined to different levels by these severe plastic deformation (SPD) modes with the smallest grains produced by HPT. The results provide a clear demonstration that the yield strength and microhardness are inter-related over a wide range of values.