...Christophe Mendibide; Carole Dessolin In this study, the effect of test conditions on the formation of selective dissolution during sour testing was investigated on a cold-rolled duplex stainless steel UNS S32750. All experiments were conducted in NaCl 150 g/L and pH₂S = 0.3 bar...

...D. Jiang; N. Birbilis; C.R. Hutchinson; M. Brameld The microstructure and electrochemical properties of additively manufactured 22Cr duplex stainless steel (DSS) and 25Cr super duplex stainless steel (SDSS) produced by laser-powder bed fusion (L-PBF) are reported herein. The as-built microstructure...

...Neice Ferreira dos Santos; Luiza Esteves; João Henrique Nery Garcia; Ronaldo Cardoso Júnior; Paulo José Modenesi; Brunela Pereira da Silva; Idalina Vieira Aoki; Wagner Reis da Costa Campos The results of the corrosion tests, in chloride environment, of lean duplex stainless steel UNS S32304 welded...

...Roger Francis Duplex stainless steels were first manufactured early in the 20th century, but it was the invention of argon oxygen decarburization melting and the addition of nitrogen that made the alloys stronger, more weldable, and more corrosion resistant. Today, there is a family of duplex...

... are presented and discussed. A case study was undertaken while four aseptic tanks were being constructed from UNS S32101 lean duplex stainless steel, which was welded by a tungsten inert gas welding process with automatic feed of AWS ER2209 filler metal. The electrochemical behavior of the welded joint...

...Evelin Barbosa de Melo; Rodrigo Magnabosco In this study, microstructural and electrochemical behavior of a UNS S31803 duplex stainless steel aged at 475°C were investigated. Hardness values increased with aging at 475°C and evidence of alpha prime (α′) phase formation was confirmed by transmission...

...Cem Örnek; Xiangli Zhong; Dirk L. Engelberg The corrosion and environmentally assisted cracking susceptibility of grade 2205 duplex stainless steel beneath a FeCl₃:MgCl₂-containing salt deposit has been investigated. Long-term exposure to atmospheric environment at 50°C and 30...

...%Cr stainless steel (17Cr steel), consisting of martensite, ferrite, and retained austenite phases, exhibited higher corrosion resistance than the 22%Cr duplex stainless steel (22Cr steel), which consisted of ferrite and austenite phases. In the 22Cr steel, selective corrosion of the ferrite phase...

...Yushu Wang; Preet M. Singh The effect of thiosulfate concentration on the corrosion behavior of duplex stainless steels S32101 and S31803 was investigated in thiosulfate- and chloride-containing environments, of relevance to the paper machine environments and other chemical industrial processes...

...Pedro Leal; Kioshy S. de Assis; Oscar R. Mattos; Cesar G. Camerini; Gabriela R. Pereira The development of techniques to detect deleterious phases in duplex and super duplex stainless steel has a great technical-scientific appeal. However, establishing a quality control of these steels using...

...Leyla Wickström; Gareth Hinds; Alan Turnbull Corrosion resistant alloys, such as duplex stainless steel (DSS), are increasingly the material of choice for oilfield applications as a result of the trend toward more extreme temperature, higher pressure, and elevated levels of hydrogen sulfide...

...Daniella Caluscio dos Santos; Rodrigo Magnabosco; Carlos de Moura-Neto The main purpose of this contribution was the study of the relation between sigma formation and pitting corrosion resistance of a UNS S31803 duplex stainless steel aged at 850°C. Solution-treated samples were isothermally aged...

... NACE International 2013 anodic polarization austenite duplex stainless steel open-circuit potential passivity sulfuric acid The additional complexity of a distinct change in corrosion rate was addressed in the following manner: a series of experiments were conducted over the duration...

...Y. Yang; H. Tan; Z. Zhang; Z. Wang; Y. Jiang; L. Jiang; J. Li The pitting corrosion behavior of UNS S82441 duplex stainless steel annealed at six different temperatures ranging from 1,000°C to 1,130°C for 1 h has been investigated by means of the potentiostatic critical pitting temperature...

...B. Hashemi; A. Davoodi; M. Momeni; M.H. Moayed In the present work, a new high-resolution solution for measuring degree of sensitization (DOS) of duplex stainless steel (DSS) 2205 (UNS S31803) by double loop-electrochemical potentiodynamic reactivation (DL-EPR) technique was obtained...

...K.R. Chasse; S. Raji; P.M. Singh The resistance of commercial duplex stainless steels (DSS) UNS S32205 and UNS S32101 to corrosion and stress corrosion cracking (SCC) has been studied using immersion tests and slow strain rate tests (SSRT) in hot alkaline-sulfide solution, with and without chloride...

...D. Han; Y. Jiang; B. Deng; L. Zhang; J. Gao; H. Tan; J. Li A simple and rapid electrochemical method for the evaluation of crevice corrosion in duplex stainless steels (DSS) is described. Three types of DSS—namely, UNS S32101, UNS S31803, and UNS S32750—were tested in 1 mol/L sodium chloride (NaCl...

...G.Ø. Lauvstad; R. Johnsen; I. Asbjørnsen; M. Bjurström; C.-G. Hjorth The resistance toward hydrogen-induced stress cracking (HISC) of forged and hot isostatically pressed (HIP) super duplex stainless steel (SDSS) according to UNS S32760 have been compared by slow strain rate testing (SSRT) under...

...N. Sridhar; G. Tormoen; S. Hackney; A. Anderko The effect of isothermal heat treatments at 475, 700, and 870°C on the localized corrosion susceptibility of 2205 duplex stainless steel (UNS S32205) was assessed in chloride-containing environments at 60°C. Microstructural changes with heat treatment...

...J. Sanchez; J. Fullea; C. Andrade; C. Alonso Stress corrosion cracking (SCC) behavior of three duplex stainless steels with a low nickel composition was studied. The results are compared with two commercial duplex steels of standard composition, one of them containing molybdenum. The slow strain...