Influence of hydrogen saturation on the structure and mechanical properties of Fe-17Cr-13Ni-3Mo-0.01С austenitic steel during rolling at different temperatures

OBRABOTKAMETALLOV MATERIAL SCIENCE Vol. 23 No. 2 2021 a b c d Fig. 4. Tensile diagrams of the initial (curve 1) steel specimens and those treated according to regime I ( a , b ) and regime II ( c , d ) (curve 2 – ε=25 % and curve 3 – ε = 50 %); a , c – after rolling of hydrogen-free specimens; b , d – after hydrogen saturation and rolling Ta b l e 3 The mechanical properties of Fe-17Cr-13Ni-3Mo-0.01С steel in the initial state and after chemical-deformation processing CDT σ 0.2 , MPa σ В , MPa δ, % Нµ, GPa initial 370 660 63 2.17 Rolling without hydrogen saturation regime I, ε = 25 % 830 900 14 3.18 regime I, ε = 50 % 1110 1150 9 3.53 regime II, ε = 25 % 850 950 18 3.27 regime II, ε = 50 % 1230 1270 7 3.97 Rolling after hydrogen saturation regime I, ε = 25 % 910 950 15 3.31 regime I, ε = 50 % 1120 1170 9 3.92 regime II, ε = 25 % 950 990 18 3.42 regime II, ε = 50 % 1230 1300 7 4.19