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. 1. XRD pattens for Fe-17Cr-13Ni-3Mo-0.01C steel in the initial state, after processing according to regime I ( a, b ) and regime II ( c, d ); a , c – rolling of hydrogen-free specimens; b , d – rolling of hydrogen saturated specimens. The reduction in rolling is shown in the figures Ta b l e 1 Relative intensities of XRD maxima, the ratios of intensities for 111γ and 022γ reflections and sizes of the coherent scattering regions (CSR) for Fe-17Cr-13Ni-3Mo-0.01C steel before and after chemical-deformation treatment CDT 111γ 002γ 022γ 113γ I 111γ /I 022γ CSR, nm initial 100.00 20.67 26.76 13.50 3.74 >200 Rolling without hydrogen saturation regime I, ε = 25 % 44.44 19.13 100.00 23.90 0.44 11 regime I, ε = 50 % 78.64 3.05 100.00 7.96 0.79 7 regime II, ε = 25 % 92.16 20.97 100.00 28.07 0.92 44 regime II, ε = 50 % 73.73 0.78 100.00 6.24 0.74 30 Rolling after hydrogen saturation regime I, ε = 25 % 83.19 36.57 100.00 26.59 0.83 14 regime I, ε = 50 % 36.35 2.94 100.00 7.55 0.36 7 regime II, ε = 25 % 98.50 20.47 100.00 29.28 0.98 70 regime II, ε = 50 % 42.04 1.91 100.00 9.39 0.42 40