A stress-strain model for a two-phase ultrafine-grained aluminum alloy

作者：De P S; Su J Q; Mishra R S^*

来源：Scripta Materialia, 2011, 64(1): 57-60.

DOI：10.1016/j.scriptamat.2010.09.003

• Ultrafine grained microstructure
• Ductility
• Orientation imaging microscopy (OIM)
• Grain boundaries

Two-phase ultrafine-grained (UFG) aluminum alloys with different precipitate and low-angle boundary distributions were examined for their monotonic stress-strain behavior Precipitates in combination with low-angle grain boundaries were found to determine the deformation micromechanism It is proposed that thermally activated vacancy movement plays a central role in this regard The experimental stress strain curves matc

• 出版日期2011-1