Supporting Information for:

The Effect of Size, Orientation and Alloying on the Deformation of AZ31

Nanopillars

Zachary H. Aitkena,*, Haidong Fanb,c, and Jaafar A. El-Awadyb Julia R. Greerd

a Department of Mechanical and Civil Engineering, California Institute of TechnologyPasadena, CA 91125, United States*Email: zaitken@caltech.eduPhone: 626-395-4416

b Department of Mechanical Engineering, Johns Hopkins UniversityBaltimore, Maryland 21218, United Statesc Department of Mechanics, Sichuan UniversityChengdu, Sichuan 610065, Chinad Division of Engineering and Applied Science, California Institute of TechnologyPasadena, CA 91125, United States

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Stress-Strain Data

Figure S1. Uniaxial stress and strain compression data for a 4 µm AZ31 pillar approximately

oriented for c-axis compression. The pillar was orientated such that the compression axis was

~5° away from the c-axis, thus causing a non-negligible shear force on the basal planes.

Catastrophic failure results in an early termination of the test.

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