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Keywords: Super duplex stainless steel
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Proceedings Papers
...Abstract During Start-up of Hot off Gas blower, catastrophic brittle fracture was observed on the final stage impeller of 4 stage Hot off gas blower. The metallurgy of the impeller is Super Duplex stainless Steel (UNS S32750) and the 4th stage of the blower was continuously operated above 325°C...
Proceedings Papers
Noelle Easter C. Co, Ravi M. Krishnamurthy, Kenneth George, Bjørn-Andreas Hugaas, Ragnar Marcelius Fredriksen, Stein Ove Hjelle
... tested in downhole high chloride conditions. The overall results of the study indicated that these corrosion resistant alloys are able to withstand chloride concentrations beyond the specified limits when H2S partial pressure is low. Super duplex stainless steel nickel based super alloys...
Proceedings Papers
Tatiana C. Almeida, Rogaciano M. Moreira, Merlin C. E. Bandeira, Oscar R. Mattos, Flávia M. F. Guedes, Ilson P. Baptista, Petronio Zumpano, Junior, Ricardo R. Marinho, Aline L.S. Gomes, Marcelo F. Motta, Hélio C. Miranda
...Abstract Several offshore pipelines in Pre-salt fields, Brazil, are made of Super Duplex stainless steel. When welded, in general, these materials present a decrease in its corrosion resistance. Welding procedures, materials properties, surface conditions and post-weld treatment have influence...
Proceedings Papers
Janardhan Rao Saithala, Amjad Kharusi, Mohammed Ghafri, Ossama Mohammed, Abdul Majeed, Manish Kulkarni, Talal Nabhani
...Abstract 25 Cr super duplex stainless steel (SDSS) centrifugal pumps have found vast applications in the Oil & Gas industry for produced water injection systems. An important factor in water injection pump material selection is the need to provide adequate corrosion resistance throughout...
Proceedings Papers
...Super duplex stainless steel thermomechanical process mechanical properties pitting corrosion INTRODUCTION Abstract Super duplex stainless steels (SDSS) are characterized by a two-phase microstructure of approximately 50% ferrite (α) and 50% austenite (γ). SDSS are highly alloyed stainless...
