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Understanding and mitigating hydrogen embrittlement of steels : a review of experimental, modelling and design progress from atomistic to continuum

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Figure

Figure 1 a and b Bright Field image and SAED pattern at 0.8 bar,respectively. The SAED pattern was taken from the area in theblack circle in a
Figure 2 Crack-tip-opening angles of a Fe–Si (3 wt%) single crystal after straining in a a vacuum and b hydrogen [6].
Figure 4 Results from tensile testing of high purity iron at 200 K(and off. Adapted from [with a strain rate of 8:3 � 10�5s�1 with hydrogen charging20 Am�2) in 0:1 NCH3OH-H2O-H2SO4 solution switched on84].
Figure 5 Superimposition oftwo TEM images of a singledislocation pile-up upon agrain boundary under constantstress; one within a vacuum(black), the other under 95Torr of hydrogen gas (white)in 310 S stainless steel [52].
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