Paper Title:
Influence of Stacking Fault Energy on the Mechanical Properties and Work Hardening Behavior of Ultra-Fine (UF) Grained Cu and Cu Alloys
  Abstract

Ultrafine-grained (UFG) pure Cu and Cu–Zn alloys samples were prepared using cold-rolling under liquid nitrogen temperature to investigate the influence of stacking fault energy (SFE) on the mechanical properties and microstructure. The tensile tests were performed at room temperature with the strain rate of 10-4/s, and the strain hardening rate (SHR) was computed from the engineering stress-strain curves. A decrease in SFE simultaneously improves strength and ductility. The average grain sizes, microstrain, dislocation density and twin density were examined using X-ray diffraction (XRD). X-ray diffraction measurements indicate that grain size decreased and microstrain, dislocation and twin densities increased with decreasing SFE.

  Info
Periodical
Materials Science Forum (Volumes 667-669)
Edited by
Jing Tao Wang, Roberto B. Figueiredo and Terence G. Langdon
Pages
1003-1008
DOI
10.4028/www.scientific.net/MSF.667-669.1003
Citation
P. Yang, H. Yang, J. M. Tao, C. J. Li, L. Shen, X. K. Zhu, "Influence of Stacking Fault Energy on the Mechanical Properties and Work Hardening Behavior of Ultra-Fine (UF) Grained Cu and Cu Alloys", Materials Science Forum, Vols. 667-669, pp. 1003-1008, 2011
Online since
December 2010
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Price
$32.00
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