Hardening of Austenitic Nitrogen High-Manganese Aluminum Alloys Under Heat and Thermomechanical Treatment

Resumo

The effect of the contents of aluminum, carbon and nitrogen on the production of thermally and mechanically stable austenitic alloys based on the Fe – (20 – 25)% Mn – (5 – 10)% Al – (0 – 10)% Ni – C – N system and the efficiency of the hardening of such alloys by nitrogen additives are studied computationally and experimentally. The experimental results confirm the adequacy of the computation of the phase composition and of the estimation of the solid-solution and precipitation hardening of these alloys.