Review of Hydrogen Embrittlement in Metals: Hydrogen Diffusion, Hydrogen Characterization, Hydrogen Embrittlement Mechanism and Prevention

Xinfeng Li, Xianfeng Ma, Jin Zhang, Eiji Akiyama, Yanfei Wang, Xiaolong Song

Table 2 Hydrogen diffusion behavior parameter for some steels

Type of steels Grain size (μm) Microstructure Apparent hydrogen diffusion coefficient (m2 s-1) Apparent hydrogen concentration (mol m-3) Pure iron [44] - Ferrite 5.8 × 10-10 0.15 304 steels [45] - Austenite 7.37 × 10-16 32.51 SAF2205 [20] - Ferrite + Austenite 3.0 × 10-15 - SAE1008 [46] 19 Ferritic + carbides 2.19 × 10-10 0.49 PSB1080 [47] 13 Martensite + bainite 4.43 × 10-11 12.21 300 M [48] - Martensite + austenite 9.6 × 10-12 - PH17-4 [49] 27 Martensite + Cu-rich precipitates 2.18 × 10-12 1235 PH13-8Mo [49] 23 Martensite + NiAl precipitates 9.42 × 10-12 561