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Effect of stacking fault energy on mechanical behavior of cold-forging Cu and Cu alloys
Highlights ► The article offers a new way to obtain good strength and ductility without changing the stacking fault energy. ► Twins are not the only way to maintain good mechanical properties. ► Short range order plays an important role in determining properties.
Abstract Cu, Cu–2.87wt% Mn, Cu–4.40wt% Mn and Cu-10.19wt% Mn were prepared by cold-forging. The deformation behavior of Cu–Mn alloys is consistent with the Cu-Al alloys and Cu–Zn alloys but without lowering the stacking fault energy to simultaneously increase the strength and ductility. A series of analysis demonstrate that Cu–Mn alloys have a much smaller twin density than low stacking fault energy (SFE) metals, and dislocation strengthening is the major reason for the higher strength. The role of short range order (SRO) in promoting the mechanical properties has also been briefly discussed.
Effect of stacking fault energy on mechanical behavior of cold-forging Cu and Cu alloys
Highlights ► The article offers a new way to obtain good strength and ductility without changing the stacking fault energy. ► Twins are not the only way to maintain good mechanical properties. ► Short range order plays an important role in determining properties.
Abstract Cu, Cu–2.87wt% Mn, Cu–4.40wt% Mn and Cu-10.19wt% Mn were prepared by cold-forging. The deformation behavior of Cu–Mn alloys is consistent with the Cu-Al alloys and Cu–Zn alloys but without lowering the stacking fault energy to simultaneously increase the strength and ductility. A series of analysis demonstrate that Cu–Mn alloys have a much smaller twin density than low stacking fault energy (SFE) metals, and dislocation strengthening is the major reason for the higher strength. The role of short range order (SRO) in promoting the mechanical properties has also been briefly discussed.
Effect of stacking fault energy on mechanical behavior of cold-forging Cu and Cu alloys
Wu, X.X. (Autor:in) / San, X.Y. (Autor:in) / Liang, X.G. (Autor:in) / Gong, Y.L. (Autor:in) / Zhu, X.K. (Autor:in)
04.12.2012
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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