ULTRA-HIGH STRENGTH TWIP STEEL WITH HIGH CHROMIUM CONTENT

A new ultra-high strength steel with a fully austenitic microstructure and twinning-induced plasticity (TWIP) effect has been developed. TWIP gives this good combination of high over 1000 MPa ductility 35%. This chromium content, which increases its corrosion resistance. By combining cold rolling annealing, the achieved very fine an average grain diameter 2.85 µm. could be used for structural applications or components that need to withstand levels stress, deformation environment.