Mvodo Eba, R. Ardigo-Besnard, Maria-Rosa Chateau-Cornu, J.-P. Herbst, F. Geoffroy, N. Besnard, A. Vandenabeele, C. Lucas, S. Descamps-Mandine, A. Josse, C.
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This study focuses on the elaboration of duplex stainless steels (DSS) from powder mixtures using spark plasma sintering (SPS). Different mass fractions of an austenitic 316L powder and a ferritic 410L one were blended and then sintered by SPS. Microstructural characterizations of the sintered samples obtained from different powder mixtures were pe...
yang, gu jiesheng, lv jianguo, he song, zhigang wang, changjun feng, han xiaohan, wu
Duplex stainless steels are widely used in many fields due to their excellent corrosion resistance and mechanical properties. However, it is a challenge to achieve duplex microstructure and excellent properties through additive manufacturing. In this work, a 0.09% N 25Cr-type duplex stainless steel was prepared by additive manufacturing (AM) and he...
singh raman, r. k. siew, w. h.
Prompted by the unexpected observation of the pitting of the weldments of a highly corrosion- and pitting-resistant duplex stainless steel, SAF2507, in chloride solutions with nitride addition, the pitting and corrosion resistance of SAF2507 and its weldments were investigated in chloride solutions with and without different levels of nitrite. The ...
Morales, Eduardo V. Cruz-Crespo, Amado Pozo-Morejón, Juan A. Oria, Jorge V. M. Araujo, Leonardo S. Bott, Ivani S.
Published in
Corrosion Reviews
The influence of specific microstructural characteristics on the properties of single-pass welding joints was assessed by optical processed images, transmission electron microscopy, microhardness measurements and corrosion tests conducted in various regions of the heat-affected zone (HAZ) in a lean duplex stainless steel. The welded joints were obt...
fedorov, aleksandr karasev, vladimir kovalev, pavel shaposhnikov, nikita zhitenev, andrey
One of the most popular methods for ranking duplex stainless steels (DSSs) and predicting their corrosion properties is the calculation of the pitting resistance equivalent number (PREN). However, since DSSs are two-phase materials with a significant fraction of secondary phases and precipitates, the application of the PREN can be highly limited. T...
zhitenev, andrey karasev, vladimir fedorov, aleksandr ryaboshuk, sergey alkhimenko, alexey
Duplex stainless steel is a unique material for cast products, the use of which is possible in various fields. With the same chemical composition, melting, casting and heat treatment technology, pitting and crevice corrosion were observed at the interphase boundaries of non-metallic inclusions and the steel matrix. To increase the cleanliness of st...
jianguo, he jiesheng, lv song, zhigang wang, changjun feng, han xiaohan, wu zhu, yuliang zheng, wenjie
Duplex stainless steel (DSS) exhibits good mechanical properties and corrosion resistance, and has attracted more and more attention within the fields of both science and technology. However, the increasing levels of N and of Cr, Mo, etc., as alloying elements in DSS increase production difficulty. In particular, the N element increases the risk of...
gargalis, leonidas karavias, leonidas graff, joachim s. diplas, spyros koumoulos, elias p. karaxi, evangelia k.
Additive manufacturing of Duplex Stainless Steels (DSS) and Super Duplex Stainless Steels (SDSS) has been successfully demonstrated using LPBF in recent years, however, both alloys feature an almost fully ferritic microstructure in the as-built condition due to the fast cooling rates associated with the Laser Powder Bed Fusion (LPBF) process. Blend...
biserova-tahchieva, alisiya biezma-moraleda, maria v. llorca-isern, núria gonzalez-lavin, judith linhardt, paul
Additive manufacturing is an important and promising process of manufacturing due to its increasing demand in all industrial sectors, with special relevance in those related to metallic components since it permits the lightening of structures, producing complex geometries with a minimum waste of material. There are different techniques involved in ...
miranda-pérez, argelia rodríguez-vargas, bryan calliari, irene pezzato, luca
The hydrocarbon industry constantly requires a better understanding of stainless-steel welding metallurgy. Despite the fact that gas metal arc welding (GMAW) is one of the most commonly employed welding processes in the petrochemical industry, the process is characterized by the presence of a high number of variables to control in order to obtain c...