Influence of hydrogen on the microstructure and fracture toughness of friction stir welded plates of API 5L X80 pipeline steel

International Journal of Hydrogen Energy v. 444, n. 41, p. 23458-2347, 2019 4.084 10.1016/j.ijhydene.2019.06.210 Hoyos Quintero , J. J.; Masoumi, M.; Pereira, V. F.; Tschiptschin, A. P.; Paes, M. T. P.; Ávila, J. A. 2019