Hydrogen Induced Crack Development in Submerged Arc Welded Steel Pipes Marianthi Bouzouni, Evangelos Gavalas, Filippos Chatzigeorgiou and Spyros Papaefthymiou MATEC Web Conf., 188 (2018) 04010 Published online: 07 August 2018 DOI: 10.1051/matecconf/201818804010