Corrosion behaviour of corrugated lean duplex stainless steels in simulated concrete pore solutions

Alvarez, S.M.; Bautista, A.; Velasco, F.

doi:10.1016/j.corsci.2011.01.050

Cited by 90 publications

(40 citation statements)

References 31 publications

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“…The explanation for this fact could be based on the higher molybdenum content of the duplex stainless steel. Other authors have also obtained similar results using specific solutions that simulated the environment existing in the porosities of concrete (25,26).…”

Section: Comportamiento Frente a La Corrosiónsupporting

confidence: 61%

Comparación entre el comportamiento mecánico a tracción, fractura y fatiga de armaduras de refuerzo fabricadas con distintos tipos de acero

2013

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The use of austenitic stainless steels as rebar is an option increasingly used in reinforced concrete structures exposed to aggressive environments and especially those that have to work in marine environments. The same is true for duplex stainless steel rebars, although nowadays they have a lower use, mainly due to the fact that their inclusion in the reinforced concrete standards was delayed 10 years compared to austenitic stainless steel ones, and consequently their in-service behavior is not as well known.A study of the mechanical properties, including fracture toughness, fatigue behaviour and corrosion resistance in saline alkaline environments of austenitic (AISI 304LN and 316LN) and duplex (D2205) stainless steel reinforcing bars was performed in this work. Bars made on a high ductility carbon steel (B500SD) that are normally used to reinforce concrete were also characterized and used as a comparison. Stainless steel reinforcing bars show mechanical properties at least similar but usually higher than one of the best carbon steel re-bars (B500SD), along with a significantly higher ductility and, of course, much better corrosion behaviour in saline alkaline environments.

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Section: Comportamiento Frente a La Corrosiónsupporting

confidence: 61%

Comparación entre el comportamiento mecánico a tracción, fractura y fatiga de armaduras de refuerzo fabricadas con distintos tipos de acero

2013

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“…Volatility of the Ni price has led to development of low alloy duplex steels 3 . The nickel content is partly replaced by manganese and nitrogen and also the molybdenum content is reduced in the so-called lean DSS (LDSS) 4 .…”

Section: Introductionmentioning

confidence: 99%

“…Exposure to high temperatures, for example during welding, can result in deterioration of DSS [2][3][4][5][6][7][8][9][10][11][12][13][14] . During welding, DSS undergoes microstructural changes that impact on their mechanical and corrosion properties, especially corrosion resistance and toughness [2][3][4][5][6][7][8][9][10][11][12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

“…During welding, DSS undergoes microstructural changes that impact on their mechanical and corrosion properties, especially corrosion resistance and toughness [2][3][4][5][6][7][8][9][10][11][12][13][14] . The degradation comes from the unbalanced duplex phase fraction with excess of ferrite phase and the precipitation of deleterious secondary phases such as chromium nitrides, secondary austenite (γ 2 ), sigma (σ), chi (χ), etc.…”

Section: Introductionmentioning

confidence: 99%

“…The degradation comes from the unbalanced duplex phase fraction with excess of ferrite phase and the precipitation of deleterious secondary phases such as chromium nitrides, secondary austenite (γ 2 ), sigma (σ), chi (χ), etc. [2][3][4][5][6][7][8][9] . A great number of investigations have been carried out on welded DSS joint [1][2][3][4][5][6][7][8][9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cyclic Polarization Study of Thick Welded Joints of Lean Duplex Stainless Steel for Application in Biodiesel Industry

et al. 2016

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Thick welded joints of UNS S32304 lean duplex stainless steel (LDSS) has been studied in acidified glycerin, a byproduct of biodiesel plants, using cyclic polarization technique. LDSS S32304 thick plates were welded by different processes commonly employed in the fabrication process: shielded metal arc welding, gas metal arc welding and flux cored arc welding. The electrochemical behavior of different weldment zones was characterized. Transmission electron microscopy and scanning electron microscopy (SEM) were used for sample characterization. SEM images showed that the heat affected zone was the most critical zone for pitting corrosion for all samples. The results were associated to the microstructural features of the materials. Generally, the breakdown potential of the top regions of welds was higher in acidified glycerin than the weld root for welds fabricated with two different filler metals. Basically, all the welded samples exhibited similar or higher corrosion resistance, compared with the corresponding base metal.

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Corrosion‐Resistant Reinforcement

Bertolini

Elsener

Pedeferri

et al. 2013

Corrosion of Steel in Concrete

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Corrosion behaviour of corrugated lean duplex stainless steels in simulated concrete pore solutions

Cited by 90 publications

References 31 publications

Comparación entre el comportamiento mecánico a tracción, fractura y fatiga de armaduras de refuerzo fabricadas con distintos tipos de acero

Comparación entre el comportamiento mecánico a tracción, fractura y fatiga de armaduras de refuerzo fabricadas con distintos tipos de acero

Cyclic Polarization Study of Thick Welded Joints of Lean Duplex Stainless Steel for Application in Biodiesel Industry

Corrosion‐Resistant Reinforcement

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