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Influence of the microstructure on the degree of sensitization of a duplex stainless steel UNS S31803 aged at 650°C

De Melo E.B.; Magnabosco R.; De Moura Neto C. (2013)

This work evaluates the phase transformations during aging of an UNS S31803 DSS at 650°C and its influence on the DOS. The material was solution treated at 1175°C and then aged at 650°C for times up to 360 h. SEM-BSC images ...

Effect of rolling on the residual stresses and magnetic properties of a 0.5% Si electrical steel

de Campos M.F.; Sablik M.J.; Landgraf F.J.G.; Hirsch T.K.; Machado R.; Magnabosco R.; Gutierrez C.J.; Bandyopadhyay A. (2008)

Cold-rolled (0-19% of reduction) 0.5% Si electrical steel sheets were studied in detail, including macro and micro residual stress measurements, crystallographic texture, dc-hysteresis curves and iron losses. Even for the ...

Selective corrosion in sodium chloride aqueous solution of cupronickel alloys with aluminum and iron additions

Liberto R.C.N.; Magnabosco R.; Alonso-Falleiros N. (2007)

Cupronickel pipes are widely used in cooling systems. Under this application, localized corrosion is observed, particularly associated with selective corrosion of nickel (denickelification). This work studied the ...

Sigma phase formation and polarization response of UNS S31803 in sulfuric acid

Magnabosco R.; Alonso-Falleiros N. (2005)

For a better understanding of the relationship between the microstructure of UNS S31803 duplex stainless steel (DSS) and the shape of the polarization curves, this study evaluated the influence of the microstructure on the ...

Investigation on the effect of a compatibilizer on the fatigue behavior of PP/coir fiber composites

Bettini S.H.P.; Antunes M.C.; Magnabosco R. (2011)

The mechanical behavior of polypropylene (PP) and 30 wt% coir fiber reinforced PP composites, with and without compatibilizer, were assessed through monotonic (tensile and bending) and cyclic (fatigue) tests. Fatigue load ...

Experimental investigations and DICTRA® simulation of sigma phase formation in a duplex stainless steel

Morais L.D.C.; Magnabosco R. (2017)

© 2017 Elsevier LtdSigma phase formation in an UNS S31803 duplex stainless steel aged at 940 °C was evaluated by computational simulation in DICTRA® software, using MOB2 diffusion database and TCFE8 thermodynamic database. ...

Sensitization and pitting corrosion resistance of ferritic stainless steel aged at 800°C

Paroni A.S.M.; Alonso-Falleiros N.; Magnabosco R. (2006)

This work investigates the influence of sensitization conditions on pitting corrosion resistance of ferritic stainless steel UNS S43000 aged at 800°C between 10 min and 320 min. UNS S43000 steel is susceptible to intergranular ...

Effect of Mo substitution by W on the passive characteristics and mechanical properties of AISI 316L austenitic stainless steel

Terra B.C.M.; Magnabosco R. (2019)

© 2019 NACE International.This work studied the influence on pitting corrosion resistance and mechanical behavior of the partial or total substitution of Mo by W in AISI 316L austenitic stainless steel. Alloys that contain ...

Kinetics of sigma phase formation in a duplex stainless steel

Magnabosco R. (2009)

This work determines the kinetics of sigma phase formation in UNS S31803 Duplex Stainless Steel (DSS), describing the phase transformations that occur in isothermal aging between 700 and 900 °C for time periods up to 1032 ...

Use of composition profiles near sigma phase for assessment of localized corrosion resistance in a duplex stainless steel

Magnabosco R.; da Costa Morais L.; dos Santos D.C. (2019)

© 2018 Elsevier LtdPitting corrosion potential of a UNS S31803 duplex stainless steel (DSS) heat treated between 750 °C and 850 °C at different aging times was related to the extent of the Cr- and Mo-depleted areas at ...