Duplex Stainless Steels
Sandvik duplex stainless steels
... Duplex stainless steels have high proof and tensile strength. Test results and practical experience have shown that expansion of tubes can be successfully carried out into tube-sheets of considerably ...
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Phase stability in Duplex stainless steels
... of Duplex Stainless Steels Duplex Stainless Steels (DSS) are very interesting materials and their employment in aggressive environments is presently of increasing ...these ...
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Modeling and Optimization of Turning Duplex Stainless Steels
... of stainless steel nearly doubles every ten years and a high growth rate, which has exceeded that of other metals and alloys, indicate the importance of such alloy ...of stainless steels to the ...
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Qualification of welding procedures for duplex stainless steels
... While G 48 allows ignoring corrosion on the edges of the sample, A 923 allows no such exception because it evaluates for the presence of detrimental intermetallic phases, and these phases rarely emerge from the major ...
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Thermal fatigue of austenitic and duplex stainless steels
... In duplex stainless steels the initiation was observed at PSBs in austenite grains (both materials H and I) and at MnS inclusions (material H, orientation ...
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Corrosion Resistance of Austenitic and Duplex Stainless Steels in Environments
... of Cr in the austenite grain. More significant Cr depletion can occur at austenite-austenite grain boundaries in duplex alloys and elongated austenite grains should be avoided if possible. Femenia et al. (2003, ...
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Hydrogen Embrittlement Susceptibility of Super Duplex Stainless Steels
... Super duplex (ferritic-austenitic) stainless steels have seen widespread application in the offshore oil, gas, paper and pulp, power and petrochemical industries 1 - 4 due to their attractive ...
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Stress corrosion cracking of duplex stainless steels in caustic solutions
... transformations occur, resulting in the precipitation of different intermetallic phases, as shown schematically in Figure 1.22 [41]-[44]. In the temperature range of 500 ° C to 1000 ° C, sigma phase, chromium nitride and ...
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Corrosion Behavior of Austenitic and Duplex Stainless Steels in Lithium Bromide
... and duplex stainless steels in various concentrations of lithium, bromide solution was investigated by using the conventional weight loss measurement ...these steels occurred due to the ...
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Qualification Testing of Lean Duplex Stainless Steels for the Process Industry
... For duplex stainless steels the ASTM A923 standard has found extensive use as a qualification test for the duplex UNS S32205 and superduplex S32750 grades, where the primary cause for concern ...
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Super and hyper duplex stainless steels: structures, properties and applications
... Duplex stainless steels, DSS, are a group of stainless steels with a microstructure of almost equal amount of austenite and ...austenitic stainless steels or ferritic ...
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Performance of Duplex Stainless Steels in Hydrogen Sulphide-Containing Environments
... in duplex stainless steels 7 ...22Cr duplex stainless steel at ...in duplex stainless steels, cracks are generated from the surface and therefore the bulk hydrogen ...
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The influence of shot peening on the fatigue behaviour of duplex stainless steels
... 2205 duplex stainless steel reinforcing ...environments. Duplex stainless steels have a microstructure composed by ferrite an austenite (about 50/50 %), which gives them excellent ...
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Interface characteristics and hot deformation behavior of duplex stainless steels
... for stainless steels with an annual growth rate of ~ ...these steels such as high strength, excellent corrosion resistance, and low cost of ...these steels are generally more expensive than ...
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Oxidation of austenitic and duplex stainless steels during primary processing
... of stainless steels were chosen for this study: austenitic and duplex stainless ...Austenitic stainless steels are the most widely used of all stainless steels ...
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Microstructural and Electrochemical Characterization of Friction Stir Welded Duplex Stainless Steels
... 2014 Duplex stainless steels exhibit good mechanical properties and corrosion resistance as well as better weldability and lower sensitivity to the weld ...lean duplex UNS S32101) was ...
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Microstructural Transformation of Different Duplex Stainless Steels in Advanced Technological Processes
... super duplex stainless steels are achieved when nearly equal proportions of ferrite and austenite are present in the ...super duplex stainless steels is a fundamental task for ...
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Ferrite percentage prediction of duplex stainless steels as a function of cooling rates
... of duplex stainless ...composition steels based on CD3MWCuN (containing ±10% relative amounts of Mo, Cr, and Ni) were produced to investigate how changing the chromium / nickel equivalent value ratio ...
174
Effect of Sigma Phase Precipitation on the Pitting Corrosion Mechanism of Duplex Stainless Steels
... austenite(γ)-ferrite(α) duplex stainless steels widely used for energy, chemical petrochemical, and marine ...Z3CN20.09M stainless steel is different from SAF2205 and SAF2507 and is ...
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The effects of laser welding parameters on the microstructure of ferritic and duplex stainless steels welds
... selection Duplex stainless steels contain two microstructural elements: ferrite and austenite, typically in close to 50-50 ferrite-austenite ...all duplex stainless steels ...
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