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Te healing of the cracks. The simulations performed are in good agreement with the experimental and numerical outcomes around the fracture of bcc Fe single crystals.Author Contributions: Conceptualization and methodology, D.S.K. and K.P.Z.; validation, D.S.K. in addition to a.V.K.; investigation, D.S.K. and a.V.K.; writing–original draft preparation, D.S.K.; writing– review and editing, D.S.K., A.V.K. and K.P.Z.; visualization, D.S.K.; supervision and project administration, D.S.K. All authors have read and agreed for the published version on the manuscript. Funding: The work was performed based on the Government investigation assignment for ISPMS SB RAS, project FWRW-2021-0002. Institutional Critique Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: Data sharing not applicable. Conflicts of Interest: The authors declare no conflict of interest. The funders had no role inside the design and style with the study; inside the collection, analyses, or interpretation of information; WZ8040 Technical Information within the writing with the manuscript, or inside the decision to publish the outcomes.
materialsArticleInvestigation with the 0.4C-35Cr-45Ni-Nb Alloy just after Service in High-Temperature Steam and Hydrocarbons EnvironmentJuliusz Orlikowski 1 , Michal Szocinski 1, , Janusz Zygmuntowicz two , Gabriel Gajewski two , Wojciech Filipkowski two and Kazimierz DarowickiDepartment of Electrochemistry, Corrosion and Materials Engineering, Chemical Faculty, Gdansk University of Technologies, G. Narutowicza Str. 11/12, 80-233 Gdansk, Poland; [email protected] (J.O.); [email protected] (K.D.) PKN Orlen S.A., Chemik Str. 7, 09-411 Plock, Poland; [email protected] (J.Z.); [email protected] (G.G.); [email protected] (W.F.) Correspondence: [email protected]; Tel.: +48-(58)-Citation: Orlikowski, J.; Szocinski, M.; Zygmuntowicz, J.; Gajewski, G.; Filipkowski, W.; Darowicki, K. Investigation from the 0.4C-35Cr-45Ni-Nb Alloy following Service in High-Temperature Steam and Hydrocarbons Atmosphere. Components 2021, 14, 6139. https:// doi.org/10.3390/ma14206139 Received: 9 September 2021 Accepted: 12 October 2021 Published: 15 OctoberAbstract: The paper presents the results of investigation of your 0.4C-35Cr-45Ni-Nb alloy, which operated inside the cracked hydrocarbon feeds and dilution steam at 1125 C. The material originated from the pyrolytic Goralatide Autophagy furnace coil tubes, of which internal walls were in speak to together with the aforementioned medium, whereas the external walls had been in make contact with with the flue gases. The examination included metallographic and mechanical tests around the material after service exposure, the results of which were compared with all the ones obtained for the as-received non-exposed specimens. The metallographic tests revealed alterations in the alloy’s structure manifested by formation of important volume of the carbides resulting from carburization of the alloy from the steam and cracked hydrocarbon feeds side. The central and external parts of the alloy samples (getting no get in touch with using the approach medium) underwent substantial degradation but inside a somewhat narrow zone in the material. The investigations of hydrogen and methane content within the alloy showed a high level of these gases, resulting from high-temperature corrosion in steam environment. The mechanical tests demonstrated clear shortening on the plastic deformation range of the alloy because of penetration on the gases and formation with the carbides inside the material’s structure. A low degree of corrosion and no creep m.