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Cavitation erosion of duplex and super duplex stainless steels
Scripta Materialia, 1998Owing to their excellent corrosion resistance, stainless steels are widely used both in the marine, urban water, chemical and food industries. In addition to the corrosive environment, high fluid flow speeds are always encountered for components used in these industries.
C.T. Kwok, H.C. Man, F.T. Cheng
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Materials Science and Technology, 1992
AbstractThis paper presents an overview of duplex stainless steels (DSS) with particular emphasis on super DSS, i.e. steels containing sufficient amounts of chromium, molybdenum, and nitrogen to produce a pitting resistance equivalent greater than 40. Duplex stainless steels have an attractive combination of mechanical and corrosion properties and are ...
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AbstractThis paper presents an overview of duplex stainless steels (DSS) with particular emphasis on super DSS, i.e. steels containing sufficient amounts of chromium, molybdenum, and nitrogen to produce a pitting resistance equivalent greater than 40. Duplex stainless steels have an attractive combination of mechanical and corrosion properties and are ...
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Welding duplex and super duplex stainless steels
Anti-Corrosion Methods and Materials, 1995Duplex stainless steels have become important competitors to austenitic stainless steels in many applications and a great deal of attention has focused on the welding aspects. The introduction of modern grades with improved properties and a competitive price level have increased their use in the offshore, petrochemical and shipbuilding industries, for ...
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Dissimilar welding of super-duplex and super-austenitic stainless steels
Welding in the World, 2016Dissimilar welding of super-duplex stainless steel 2507 (UNS S32750) to super-austenitic stainless steel 6Mo (UNS S31254) was studied using nickel-alloy filler materials ERNiCrMo-13 and ERNiCrMo-3 as well as super-duplex filler material ER2594 in GTAW. It was shown that mechanical properties of the dissimilar welded joints made with nickel-alloy filler
Zhiliang Zhou, Johan Löthman
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National Conference on Challenges in Research & Technology in the Coming Decades (CRT 2013), 2013
The duplex stainless steel (DSS) is a two phase microstructure of about equal proportion of austenite (chromiumnickel) and ferrite (chromium). Austenite is ductile in nature and ferrite is brittle in nature, this combination provides an excellent mechanical properties (hardness, impact toughness etc) and corrosion resistance [1].
R. Naveen Kumar +4 more
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The duplex stainless steel (DSS) is a two phase microstructure of about equal proportion of austenite (chromiumnickel) and ferrite (chromium). Austenite is ductile in nature and ferrite is brittle in nature, this combination provides an excellent mechanical properties (hardness, impact toughness etc) and corrosion resistance [1].
R. Naveen Kumar +4 more
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Super Duplex/Duplex Stainless Steel Umbilical Tube Resistance to HISC
29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 6, 2010Super duplex/duplex stainless steel is susceptible to Hydrogen Induced Stress Cracking (HISC) whilst under the influence of Cathodic Protection (CP) systems. Field failure experiences have been reported on super duplex stainless steel components in subsea applications.
X. An, A. Dobson, I. Probyn, P. Fellow
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Extending the Application Range of Super-duplex Stainless Steels
CORROSION 2007, 2007Abstract Super-duplex stainless steels such as UNS S32750 have found extensive use in sea water applications as well as in equipment in the process industry, e.g. refinery heat exchangers. The newly developed hyper duplex grade UNS S32707 allows extension of the application range of austenitic-ferritic alloys into more aggressive ...
Kenneth Göransson +2 more
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Failure of a super duplex stainless steel reaction vessel
Engineering Failure Analysis, 2004Abstract Crevice corrosion and stress corrosion cracking (SCC) were recently discovered in a vessel used to strip vinyl chloride monomer from a water-based slurry of PVC granules. The vessel was manufactured from UNS S32750 super duplex stainless steel and the welds were produced using matching welding consumables.
Linton, V. +3 more
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Micro Flash Welding of Super Duplex Stainless Steels
Materials Science Forum, 2007Super duplex stainless steels were welded using new flash butt welding technology of temperature controlling system. The super duplex stainless steel (329J4L) and conventional duplex stainless steel (329J3L) were used. The samples were mounted in the dies using a Gleeble thermal simulator and flash but welding was made.
Toshio Kuroda +2 more
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Technical Challenges in Using Super Duplex Stainless Steel
CORROSION 2006, 2006Abstract Super Duplex Stainless Steel (SDSS) was selected, fabricated and installed for the high pressure, deoxygenated seawater sections of Mars Waterflood Project (MWP). Several factors led to the selection of this material including corrosion resistance in seawater, relatively high strength and the relative uncertainty in the ...
Desmond Koh-Kiong Tiong +2 more
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