Permeability, diffusion, and solubility of hydrogen in Cr?Ni and Cr?Mn austenitic steels

10.2172/918137

“…The relative solubility then provides a indirect indication of the accuracy of the diffusion determination. If we neglect the studies that result in low solubility [15,34,35] and only consider the studies where the solubility determinations cluster at the highest values [29,32,36], the hydrogen diffusivity relationships are in good accord with one another. The relationship of Louthan and Derrick [27], Table 1 and marked by circles in Figure 5, appears to represent a good average of diffusivity for austenitic stainless steels.…”

“…The average relationship of Sun et al was also generated from six alloys in several conditions (solutionized, annealed and cold-worked) [29] and is marked with triangles in Figure 4. The other lines represent permeability determined for type 316 stainless steels from a number of studies [15,16,[32][33][34][35][36].…”

“…Triangles: average of six austenitic stainless steels [29]. Other full lines: [15,16,[32][33][34][35][36]. Temperature, 1000/T (K -1 ) Figure 5.…”

“…Circles: average for several different austenitic stainless steels [27]. Full lines: [29,32,36]. Dotted lines represent relationships from studies that feature low solubility, same studies dotted in Figure 6 [15,34,35].…”

“…Figure 7. Solubility of hydrogen in austenitic stainless steels from several studies extrapolated to ambient temperature: Louthan [27] and Sun [29], average from several austenitic stainless steels; Gromov [32], 316L; and Grant [36], 316. Tables 3-7, closed symbols, data from Table 2 and Refs.…”