Effect of stacking fault energy on plastic deformation of nanocrystalline face-centered cubic metals

Ebrahimi, F.; Ahmed, Z.; Li, H.
October 2004
Applied Physics Letters;10/25/2004, Vol. 85 Issue 17, p3749
Academic Journal
The effect of stacking fault energy (SFE) on the tensile stress–strain behavior of nanocrystalline face-centered cubic (fcc) metals was investigated. The stacking fault energy of nickel was decreased by alloying with copper or iron. It was found that, as predicted by a recent simulation study, decreasing the SFE increases the strain hardening rate of the nanocrystalline fcc metals. The effect was more pronounced in the nickel–copper alloy, which had a smaller average grain size.


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