Environmental effect on corrosion behavior of 9MnSi5 steel pipelines Aleksey Alkhimenko, Boris Ermakov, Ekaterina Alekseeva, Artem Davidov, Mark Kovalev and Svetlana Mushnikova E3S Web Conf., 221 (2020) 02001 Published online: 17 December 2020 DOI: 10.1051/e3sconf/202022102001