...Zehui Liu; Ming Liu; Mengyuan Yang; Lining Xu; Jinxu Li; Lijie Qiao The relationship between the corrosion resistance of cast duplex stainless steel welded joints and inclusions was investigated by metallographic characterization, electrochemical tests, in situ tests, scanning electron microscopy...

...QingLong Wu; Shangjun Gu; Jie Wang; Fulong Wei; Zhiying Li; Hui Yang; Changrong Li In this study, a series of soaking experiments were conducted in a simulated marine environment solution to explore the pitting corrosion behavior induced by four types of inclusions in microalloyed steel bars...

... arrangement. Furthermore, it was revealed that in the early stages, the spatial pit distribution can be predicted via inspection of surface inclusions prior to the corrosion process. The NNA-based method for characterizing the spatial distribution of feature centroids in planes is herein provided. More...

...J.J.M. Jebaraj; D.J. Morrison; I.I. Suni We report the hydrogen diffusion coefficients in Alloy 686 (UNS N06686) and Alloy 59 (UNS N06059), using the electrochemical hydrogen permeation method. Optical microscopy and SEM indicate the presence of a second phase inclusion concentrated along the grain...

... at the oxide-nitride interface. The salt spray tests revealed a main dependence on the manganese sulfide (MnS) inclusions content in the base material. ‡Corresponding author. E-mail: [email protected] . *Centro de Ciências Exatas e Tecnologia, Universidade de Caxias do Sul, 95070-560, Caxias do Sul, RS...

...S.U. Koh; H.G. Jung; K.B. Kang; G.T. Park; K.Y. Kim Hydrogen-induced cracking (HIC) has been studied phenomenologically. The effect of microstructure on HIC is discussed for steels having two different levels of nonmetallic inclusions. Steels with different microstructures were produced...

... ratio of inclusions and decreased HIC resistance. In BP solution, Cu-bearing steel formed a protective film of γ-Fe₂O₃ enriched with Cu on the outside and FeS on the inside. Cr and Mo showed a synergistic effect on the formation of low-temperature transformation products...