Fig. 3: Mechanical properties of the swaged copper in the center. | Communications Materials

Fig. 3: Mechanical properties of the swaged copper in the center.

From: Enhanced electrical conductivity and mechanical properties in thermally stable fine-grained copper wire

Fig. 3

a Quasi-static tensile curves of the swaged and CG copper tested at room and liquid nitrogen (LN) temperatures. b Yield strength versus swaging deformation stain. The insets are tensile fractured specimens. c Charpy absorbed impact energy vs swaging strain. The insets are fractured specimens (the error bar represents the standard deviation of impact energy). d Dynamic compressive curves with strain rates of 1000–3000 s−1 loaded from top (T) and side (S), respectively. e Dynamic tensile curves with strain rates of 1000–3000 s−1 loaded from top. f Wear rate and curves versus different sliding loads at room temperature loaded from top (T) and side (S). The inset is friction coefficient versus wearing time (the error bar represents the standard deviation of wear rate).

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