Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia):

A. I. Zhitenev, Engineer, “Metallurgical Examination” Lab., e-mail: zhitenev@thixomet.ru
A. S. Fedorov, Engineer, “New Technologies and Materials” Scientific and Technological Complex

Central Research Institute of Structural Materials “Prometey” named by I. V. Gorynin of National Research Center “Kurchatov Institute” (St. Petersburg, Russia):

A. A. Kazakov, Dr. Eng., Prof., Head of “Metallurgical Examination” Lab., e-mail: kazakov@thixomet.ru
O. V. Fomina, Dr. Eng., Head of Scientific and Production Complex

Thermodynamic criteria have been developed for a reasonable prediction of compositions of advanced duplex stainless steels. The success of these criteria was studied under the influence of the primary and secondary alloying elements for duplex stainless steels, and the results of these studies have been generalized using multiple regression equations. It has been revealed that the chemical composition optimization of well-known commercial DSS grades, as well as the development of new grades with specified properties can significantly benefit from the use of these equations. Hot physical experiments have shown that thermodynamic modeling well describes the ferrite content found in experimental steels of different compositions at different quenching temperatures.

1. Practical guidelines for the fabrication of duplex stainless steels. International Molybdenum Association (IMOA), London, UK, 2009, pp. 1–64.
2. Kang J.-Y., Kim H., Kim K.-I., Lee C.-H., Han H. N., Oh K.-H., Lee T.-H., Effect of austenitic texture on tensile behavior of lean duplex stainless steel with transformation induced plasticity (TRIP). Materials Science and Engineering: A. 2017. Vol. 681. pp. 114–120.
3. Ran Q., Xu Y., Li J., Wan J., Xiao X., Yu H., Jiang L. Effect of heat treatment on transformation-induced plasticity of economical Cr19 duplex stainless steel. Materials & Design (1980–2015). 2014. Vol. 56, pp. 959–965.
4. Zhang W., Hu J. Effect of annealing temperature on transformation induced plasticity effect of a lean duplex stainless steel. Materials Characterization. 2013. Vol. 79. pp. 37–42.
5. Levkov L., Shurygin D., Dub V., Kosyrev K., Balikoev A. New generation of super duplex steels for equipment gas and oil production. E3S Web of Conferences. 2019. Vol. 121. Article 04007.
6. Orlov V., Levkov L., Dub V., Balikoev A., Shurygin D. New approach to development and manufacturing technologies of duplex steel. E3S Web of Conferences, 2019. Vol. 121. Article 04010.
7. Sousa R. O., Lacerda P., Ferreira P. J., Ribeiro L. M. M. On the Precipitation of Sigma and Chi Phases in a Cast Super Duplex Stainless Steel. Metallurgical and Materials Transactions A. 2019. Vol. 50, Iss. 10. pp. 4758–4778.
8. Holländer Pettersson N., Lindell D., Lindberg F., Borgenstam A. Formation of Chromium Nitride and Intragranular Austenite in a Super Duplex Stainless Steel. Metallurgical and Materials Transactions A. 2019. Vol. 50. Iss. 12. pp. 5594–5601.
9. Tehovnik F., Batic B. S., Vode F., Malej S., Burja J. Nitrides and carbides in 2101 lean duplex stainless steel. Materiali in tehnologije. 2018. Vol. 52. Iss. 6. pp. 821–826.
10. Zuk M., Czupryski A., Czarnecki D., Poloczek,T. The effect of niobium and titanium in base metal and filler metal on intergranular corrosion of stainless steels. Welding Technology Review. 2019. Vol. 91. Iss. 6, pp. 30–38.

11. Calliari I., Zanesco M., Bassani P., Ramous E. Analysis of secondary phases precipitation in duplex stainless steels. Department of Innovation in Mechanics and Management (DIMEG) University of Padova, Padua, 2009.
12. Ogawa K., Osuki T. Effects of Alloying Elements on Sigma Phase Precipitation in Duplex Stainless Steel (1) — Modelling of Effects of Chromium, Molybdenum and Tungsten on Sigma Phase Growth Rate in Super Duplex Stainless Steel. ISIJ International. 2019. Vol. 59. Iss. 1. pp. 122–128.
13. Kim S.-C., Zhang Z., Furuya Y., Kang C.-Y., Sung J.-H., Ni Q.-Q., Watanabe Y., Kim I.-S. Effect of Precipitation of σ-Phase and N Addition on the Mechanical Properties in 25Cr–7Ni–4Mo–2W Super Duplex Stainless Steel. Materials Transactions. 2005. Vol. 46. Iss. 7. pp. 1656–1662.
14. Speidel M. O. Nitrogen containing austenitic stainless steels. Materialwissenschaft und Werkstofftechnik: Entwicklung, Fertigung, Prüfung, Eigenschaften und Anwendungen technischer Werkstoffe. 2006. Vol. 37. Iss. 10. pp. 875–880.
15. Pohl M., Storz O., Glogowski T. Effect of intermetallic precipitations on the properties of duplex stainless steel. Materials Characterization. 2007. Vol. 58. Iss. 1. pp. 65–71.
16. Knyazeva M., Pohl M. Duplex Steels. Part II: carbides and nitrides. Metallography, Microstructure, and Analysis. 2013. Vol. 2. Iss. 5. pp. 343–351.
17. Karlsson L. Welding duplex stainless steels — A review of current recommendations. Welding in the World. 2012. Vol. 56. Iss. 5-6. pp. 65–76.
18. Ramirez A. J., Lippold J. C., Brandi S. D. The relationship between chromium nitride and secondary austenite precipitation in duplex stainless steels. Metallurgical and Materials Transactions A. 2003. Vol. 34. Iss. 8. pp. 1575–1597.
19. Pettersson N., Pettersson R. F. A., Wessman S. Precipitation of chromium nitrides in the super duplex stainless steel 2507. Metallurgical and Materials Transactions A. 2015. Vol. 46. Iss. 3. pp. 1062–1072.
20. Calliari I., Breda M., Frigo M., Pellicciari M., Ramous E. Isothermal aging of lean duplex stainless steel. Vestnik Magnitigorskogo gosudarstvennogo tekhnicheckogo universiteta im. G. I. Nosova. 2014. No. 4. pp. 44–53.
21. Brytan Z., Niagaj J. Corrosion resistance and mechanical properties of TIG and A-TIG welded joints of lean duplex stainless steel S82441/1.4662. Archives of Metallurgy and Materials. 2016. Vol. 61. Iss. 2. pp. 771–784.
22. de Lima H. M. L. F. et al. The effect of copper addition on the corrosion resistance of cast duplex stainless steel. Journal of Materials Research and Technology. 2019. Vol. 8. Iss. 2. pp. 2107–2119.
23. Zhao Yan et al. Pitting corrosion behavior in novel Mn–N alloyed lean duplex stainless steel containing Cu. Journal of materials science. 2018. Vol. 53. Iss. 1. pp. 824–836.
24. Bale C.W., Chartrand P., Degterov S. A., Eriksson G., Hack K., Mahfoud R. B., Melançon J., Pelton A. D., Petersen S. FactSage thermochemical software and databases. Calphad, 2002. Vol. 26. Iss. 2. pp. 189–228.
25. Bale Ch., Bélisle E., Chartrand P., Decterov S., Eriksson G., Hack K., Jung I.-H., Kang Y.-B., Melançon J., Pelton A., Robelin C., Petersen S. FactSage Thermochemical Software and Databases — Recent Developments. Calphad-computer Coupling of Phase Diagrams and Thermochemistry. 2009. Vol. 33. pp. 295–311.
26. Bale C. W., Bélisle E., Chartrand P., Decterov S. A., Eriksson G., Gheribi A. E., Hack K., Jung I.-H., Kang Y.-B., Melançon J., Pelton A. D., Petersen S., Robelin C., Sangster J., Spencer P., Van Ende M.-A. FactSage Thermochemical Software and Databases, 2010-2016. Calphad. 2016. Vol. 54. pp. 35–53.
27. Byrne G., Fajimi A., Francis R., Warburton G. Meaningful Tests for the Quality of Superduplex Stainless Steels (SDSS). CORROSION 2018. NACE International. 2018.
28. Guo Y., Hu J., Li J., Jiang L., Liu T., Wu Y. Effect of annealing temperature on the mechanical and corrosion behavior of a newly developed novel lean duplex stainless steel. Materials. 2014. Vol. 7. Iss. 9. pp. 6604–6619.
29. Mori G., Bauernfeind D. “Pitting and crevice corrosion of superaustenitic stainless steels. Materials and Corrosion. 2004. Vol. 55. Iss. 3. pp. 164–173.
30. Fargas G., Anglada M., Mateo A. Effect of the annealing temperature on the mechanical properties, formability and corrosion resistance of hot-rolled duplex stainless steel. Journal of Materials Processing Technology. 2009. Vol. 209. Iss. 4. pp. 1770–1782.
31. Keichel J., Foct J., Gottstein G. Deformation and annealing behavior of nitrogen alloyed duplex stainless steels, Part I: Rolling. ISIJ International. 2003. Vol. 43. Iss. 11. pp. 1781–1787.
32. De Lacerda J. C., Cândido L. C., Godefroid L. B. Corrosion behavior of UNS S31803 steel with changes in the volume fraction of ferrite and the presence of chromium nitride. Materials Science and Engineering: A. 2015. Vol. 648. pp. 428–435.
33. Alvarez-Armas I. Duplex stainless steels: brief history and some recent alloys. Recent Patents on Mechanical Engineering. 2008. Vol. 1. No. 1. pp. 51–57.