Structure and resistance to deformation of hydrogenated steel 12Kh18N10T at different temperatures

Review on the Influence of Temperature upon Hydrogen Effects in Structural Alloys

“…The effect of temperature on the tensile ductility of 300 series stainless steels in the solution-treated condition was investigated in various studies [3,7,8,[10][11][12][13][14][15][16][17][18][19][20][21]. Some studies reported the reduction of area (RA) measured under the influence of hydrogen [16][17][18][19], but most studies reported the relative reduction of area (RRA) as the ratio of RA measured under the influence of hydrogen and in a control atmosphere, e.g., air, He, or Ar (RRA = RA H2 /RA Control ).…”

“…Figure 3a,b shows T HE,max values of solution-treated 304-and 316-type austenitic stainless steels measured at tensile strain rates less than 10 −4 s −1 for tests in hydrogen gas and gaseous hydrogen-precharged specimens. Results were very consistent around 200-220 K and appeared to be independent on the hydrogen charging method, i.e., tests in hydrogen gas [3,8,[11][12][13][14][15][19][20][21] compared to tests with hydrogen-precharged specimens [7,[16][17][18][19]. Additionally, alloying up to 10 wt% Mn in 316 grades appeared to have a negligible influence on T HE,max [13].…”

“…Additionally, alloying up to 10 wt% Mn in 316 grades appeared to have a negligible influence on T HE,max [13]. Analyzing T HE,max as functions of tensile strain rate [3,7,11,[16][17][18][19] (Figure 3c) demonstrated that the hydrogen gas pressure for tests performed in hydrogen gas [3,8,[11][12][13][14][15]21,22] (Figure 3d) and the hydrogen content for tests performed with gaseous [7,10,[16][17][18] or electrolytic [19] precharged specimens ( Figure 3e) showed no significant influence of either parameter within the given parameter ranges. T HE,max of CrMnN austenitic stainless steels was reported to be around 250 K (Figure 3f) [7,18], which is higher than that of 304-and 316-type austenitic stainless steels.…”