%0 Journal Article %T Microstructure versus size: nano/microscale deformation of solute-strengthening Al alloys via pillar compression tests %A Haiyang Zhou %A Qing H. Qin %A Shaohua Yan %J Materials Research Letters %D 2019 %R https://doi.org/10.1080/21663831.2018.1553802 %X ABSTRACT Effect of solutes, crystal orientation, sample¡¯s size, and dislocation density on the nano/microscale deformation of solute-strengthening Al alloys has been investigated via pillar compression tests. The Mg-solute-strengthening pillar with dislocation density of 1012 m£¿2 shows size- and orientation-dependent strength, while the strength of Si-Mg-solute-strengthening pillar with dislocation density of 1013 m£¿2 is size- and orientation- independent. With increasing the dislocation density, the strength of pillars increased and become size-independent. GRAPHICAL ABSTRACT IMPACT STATEMENT Links between the microstructure, sample¡¯s size and nano/microscale plasticity of solute-strengthening Al alloys were made via pillar compression testing. Deformation mechanism at nano/microscale was quantitatively explored %U https://www.tandfonline.com/doi/full/10.1080/21663831.2018.1553802