Experimental Correlation of Mechanical Properties of the Ti-6Al-4V Alloy at Different Length Scales

This article focuses on a systematic study of Ti-6Al-4V alloy in order to extensively characterize the main mechanical properties at macro-, micro- and submicrometric length scale under different stress fields. Hardness, elastic modulus, true stress–strain curves strain-hardening exponent are correlated with intrinsic ?- ?-phases that constitute this alloy. A characterization process followed, considering anisotropic effect both orthogonal crystallographic directions, as well determining for ?-phase. An analytical relationship was established between flow determined fields, testing geometries scales, highlighting it is possible estimate compression and/or tensile loading from composite hardness value obtained by instrumented nanoindentation testing.