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      Effect of Dynamic Reheating Controlled by the Weaving Width on the Microstructure of GTA Bead-On-Pipe Weld Metal of 25% Cr Super Duplex Stainless Steel

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      Metals
      MDPI AG

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          Super duplex stainless steels

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            Effect of Secondary Phase Precipitation on the Corrosion Behavior of Duplex Stainless Steels

            Duplex stainless steels (DSSs) with austenitic and ferritic phases have been increasingly used for many industrial applications due to their good mechanical properties and corrosion resistance in acidic, caustic and marine environments. However, DSSs are susceptible to intergranular, pitting and stress corrosion in corrosive environments due to the formation of secondary phases. Such phases are induced in DSSs during the fabrication, improper heat treatment, welding process and prolonged exposure to high temperatures during their service lives. These include the precipitation of sigma and chi phases at 700–900 °C and spinodal decomposition of ferritic grains into Cr-rich and Cr-poor phases at 350–550 °C, respectively. This article gives the state-of the-art review on the microstructural evolution of secondary phase formation and their effects on the corrosion behavior of DSSs.
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              The electrochemical behaviour of 2205 duplex stainless steel in alkaline solutions with different pH in the presence of chloride

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                Author and article information

                Journal
                MBSEC7
                Metals
                Metals
                MDPI AG
                2075-4701
                May 2018
                May 01 2018
                : 8
                : 5
                : 312
                Article
                10.3390/met8050312
                a8d158c9-1d12-48af-9f3c-f9247bf29b55
                © 2018

                https://creativecommons.org/licenses/by/4.0/

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