The microhardness and internal stresses allocation in superheating pipes welded node made of dissimilar steelsAigul Ilyasova, Roman Kulesh, Lyudmila Lyubimova, Alexander Tashlykov, Anton Gerasimov, Alexander Zavorin and Evgenii PuzyrevMATEC Web Conf., 110 (2017) 01047DOI: https://doi.org/10.1051/matecconf/201711001047