Push-pull tests at fixed plastic strain amplitude or stress were run on a TWIP steel, and followed by TEM observations, to analyze its cyclic behavior in relation with the deformation mechanisms. The kinematic isotropic components of flow measured throughout whole hardening/softening stages, their evolution cumulated was compared those tension. rise internal found responsible for initial harden...

High-entropy alloys (HEAs) and medium-entropy (MEAs), also sometimes referred to as multi-principal element (MPEAs), present opportunities develop new materials with outstanding mechanical properties. Through the careful selection of constituent elements along optimized thermal processing for proper control structure, grain size, deformation mechanisms, many newly developed HEA systems exhibit ...

In situ tensile and reversed cyclic tests were run on a TWIP steel in SEM, with High-Resolution Digital Image Correlation (HR-DIC) measurements of the plastic strain field few selected grains prone to twinning, spatial resolution between 150 250 nm, or under an AFM, surface steps height at emerging deformation twins. Evidences detwinning upon load reversal, as well quantitative data twinning/de...