Fig. 9: Small region of interest.

Cracking area for (a) as-deposit, (b) HT-800 and (c) HT1200 sample at (1): hydrogen free and (2): 24 h hydrogen charging conditions. (3%,15%,25% and fracture strain).
Cracking area for (a) as-deposit, (b) HT-800 and (c) HT1200 sample at (1): hydrogen free and (2): 24 h hydrogen charging conditions. (3%,15%,25% and fracture strain).