Cavitation Erosion Damage Mechanism of a Duplex Stainless Steel Having a Ferrite-Austenite-Sigma-Phase Triplex Microstructure
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Engineering and Performance"
DOI: 10.1007/s11665-020-04807-9
Abstract: This paper is on the cavitation erosion (CE) behavior of a thermally annealed duplex stainless steel having a triplex microstructure consisting of ferrite, austenite and sigma phase. As sigma forms, it siphons off alloying elements… read more here.
Keywords: duplex stainless; sigma phase; sigma; damage ... See more keywords
Sigma phase-induced failure of AISI 310 stainless steel radiant tubes
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Failure Analysis"
DOI: 10.1016/j.engfailanal.2017.08.027
Abstract: Abstract Failure of AISI 310 stainless steel tubes, used as radiant tubes in a heat treatment furnace, operating at temperature range 480 to 700 °C, is investigated. Longitudinal cracks were observed in tubes after around five… read more here.
Keywords: failure aisi; sigma phase; failure; aisi 310 ... See more keywords
Atomic bonding and electronic stability of the binary sigma phase
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2019.152053
Abstract: Abstract The formation of the sigma phase in technologically important materials influences greatly their mechanical properties. Fundamental knowledge on the sigma phase is demanded to understand the phase stability and reasonably control its precipitation. The… read more here.
Keywords: phase; sigma phase; sigma; atomic bonding ... See more keywords
The heritage of the twin microstructure in the sigma phase formed from deformed austenite
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.156424
Abstract: Abstract Deformation twinning is the main mechanism for the nanocrystallization of austenite and the sigma phase, which has been found to nucleate at deformation twin boundaries, especially at their intersections in over-deformed austenite stainless steel.… read more here.
Keywords: sigma phase; sigma; deformation; deformed austenite ... See more keywords
Determination of the magnetic phase diagram in the H-T plane for a sigma-phase Fe47Mo53 alloy: Double re-entrant transition
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2019.03.089
Abstract: Abstract Magnetization measurements were carried out in the in field-cooled (FC) and in zero-field-cooled (ZFC) conditions versus temperature, T, and external magnetic field, H, on a sigma-phase Fe47Mo53 compound. Analysis of the measured MFC and… read more here.
Keywords: phase; temperature; sigma phase; entrant transition ... See more keywords
Low-field magnetic analysis for sigma phase embrittlement monitoring in thermally aged 22Cr duplex stainless steel
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2020.167072
Abstract: Abstract The aim of this study is to evaluate a new nondestructive method designated as Low-Field Magnetic Analysis (LFMA) based on the measurement of magnetic flux density for monitoring sigma (σ) phase precipitation in duplex… read more here.
Keywords: phase; low field; sigma phase; magnetic analysis ... See more keywords
Influence of Si on sigma phase precipitation and pitting corrosion in superaustenitic stainless steel weld metal
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DOI: 10.1016/j.matchemphys.2017.12.055
Abstract: Abstract In this study, we investigated the effect of Si on the precipitation of the sigma phase in super austenitic stainless steel welds. The Scheil module solidification, partition coefficient and activity were calculated using the… read more here.
Keywords: phase; sigma phase; precipitation; weld metal ... See more keywords
Effect of Sigma Phase Precipitation on the Pitting Corrosion Mechanism of Duplex Stainless Steels
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DOI: 10.20964/2018.10.38
Abstract: A new phenomenon of the pitting corrosion of three duplex stainless steels (DSSs), SAF2205, SAF2507 and Z3CN20.09M, induced by sigma phases is found and discussed. The pitting potential (Ep) of all three DSS specimens with… read more here.
Keywords: sigma phase; duplex stainless; pitting corrosion; sigma ... See more keywords
Crystalline approximant of amorphous Fe-Si-B structures
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DOI: 10.2320/matertrans.md201711
Abstract: We have examined the local atomic configurations of amorphous Fe-Si-B alloys by means of electron diffraction pair-distribution-function analysis and compared them with those of a metastable sigma phase formed during the crystallization process. We found… read more here.
Keywords: approximant amorphous; sigma phase; amorphous structures; crystalline approximant ... See more keywords