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Modelling the sigma phase [PDF]
no ...
Mathieu R. +7 more
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Sigma Phase: Nucleation and Growth [PDF]
Duplex stainless steels (DSS) and superduplex stainless steels (SDSS) are important classes of stainless steels, because they combine the benefits of austenite and ferrite phases.
Gláucio Soares da Fonseca +2 more
doaj +2 more sources
Relationship between microstructure and fracture types in a UNS S32205 duplex stainless steel [PDF]
Duplex stainless steels are susceptible to the formation of sigma phase at high temperature which could potentially be responsible for catastrophic service failure of components.
Maria Victoria Biezma +2 more
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Sigma Phase in Superduplex Stainless Steel: Formation, Kinetics and Microstructural Path [PDF]
The superduplex stainless steels (SDSS) are widely used in chemical, oil and gas industries, to pipelines and storage material facilities. In welding process or working in temperature elevated, secondary phases may appear in the form of precipitates, as ...
Gláucio Soares da Fonseca +4 more
doaj +2 more sources
This work analyzed the volume fraction of the sigma phase in a superduplex stainless steel UNS S32760. Two electrochemical testing methodologies were applied for this purpose.
Marcelo T.G. de Sampaio +7 more
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Magnetism and magnetic phase diagram of sigma-phase Fe68V32 compound [PDF]
Abstract The magnetic phase diagram in the H-T coordinates has been determined for σ-Fe68V32 from the ZFC/FC magnetization measurements. The re-entrant character of magnetism, going from paramagnetic through ferromagnetic to spin-glass (SG) states, has been evidenced.
Piotr Konieczny, Stanisław M. Dubiel
openaire +1 more source
Double Kinetics of Intermetallic Phase Precipitation in UNS S32205 Duplex Stainless Steels Submitted to Isothermal Heat Treatment [PDF]
One of the most studied deleterious phases in stainless steels is the sigma phase, due to its high potential to decrease the toughness and corrosion resistance of these steels.
Igor Jordão Marques +3 more
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Precipitation of Sigma and Chi Phases in Cast Standard Duplex Stainless Steel [PDF]
This work deals with the problem of intermetallic phases in cast standard duplex steel ASTM A890 Gr 4A (generally known as 2205). The investigated steel was subjected to isothermal heat treatment in the range from 595 °C to 900 °C and in the duration ...
M. Myška +4 more
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Magnetic and Thermoelectric Detection of Sigma Phase in 2507 Duplex Stainless Steel
Duplex stainless steel has significantly broadened the range of applications of stainless steel. They have a dual-phase microstructure containing ferrite and austenite at approximately a 50–50% phase ratio.
István Mészáros +2 more
doaj +1 more source
INFLUENCE OF SIGMA PHASE ON GENERAL CORROSION OF AUSTENITIC STAINLESS STEEL
Austenitic stainless steel is mostly used at high temperatures. It is known that during heating of the austenitic stainless steel with increasing temperature and time of annealing a microstructure is changed i.e.
Amna Hodžić +5 more
doaj +1 more source

