A novel processing route comprising double reversion annealing (DRA) was designed for developing bulk nano-grained (NG) structure of an austenitic stainless steel (Type 301LN). The new concept DRA comprised two subsequent intrinsic type processes i.e., times cold reductions (~53% and 63%) followed by fast induction heating (~200 °C/s) short duration at different temperatures (first 690 °C/60s s...

Aiming at overcoming the strength-ductility trade-off in structural Ti-alloys, a new family of TRIP/TWIP Ti-alloys was developed past decade (TWIP: twinning-induced plasticity; TRIP: transformation-induced plasticity). Herein, we study tunable nature deformation mechanisms with various TWIP and TRIP contributions by fine adjustment Zr content on ternary Ti-12Mo-xZr (x = 3, 6, 10) alloys. The mi...

The work presented here deals with the implementation of a new methodology that allows fast and reliable determination fatigue strength. It is based on monitoring specimen stiffness changes at different stress levels, as an indicator evolution damage. This rapid test uses techniques available in many laboratories, DIC (Digital Image Correlation) technique common extensometers. Moreover, obtaine...

In the present study, the influence of annealing temperature on mechanical properties and the microstructure of a high manganese austenitic steel (Fe-30Mn-4Al-4Si-0.5C) was investigated. X-ray diffractometry, optical and scanning electron microscopy, hardness and tensile tests were used to analyze the relationship between mechanical properties and microstructure after annealing process. The res...