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Pitting Corrosion Damage Characterization of Stainless Steel Reinforced Concrete Beams

Product Number: 51324-21108-SG

Author: Wesley Vitor Dantas de Carvalho Bezerra; Christopher Lewis Alexander

Publication Date: 2024

$40.00

At early stages, reinforced concrete structures exposed to chloride ions are prone to pitting corrosion. In carbon steel reinforcement, pitting is expected to quickly transition into widespread corrosion damage. However, for stainless steels, a higher resistance to lateral corrosion spread is present. As the accumulation of corrosion products in the steel-concrete interface (SCI) can lead to concrete cover cracking, studying the corrosion damage on stainless steel reinforced concrete is of importance. This work focuses on characterizing pitting corrosion damage data on laboratory exposed (non-electrically polarized) stainless steel (SS410) reinforced concrete beams with different damage degrees to concrete cover. For that, digital microscopy, and 3D profilometry were used to characterize corrosion damage, and chloride titrations were used to determine the chloride concentrations at the SCI. Possible pit repassivation mechanisms that includes corrosion products are discussed. This data can then be incorporated in the development of more accurate pitting corrosion and corrosion-induced concrete cover cracking models.

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Stress Corrosion Cracking Behaviour Of Thermally Aged Alloy 182

Product Number: ED22-17291-SG

Author: Siddharth Suman, Hans-Peter Seifert, Philippe Spätig, Stefan Ritter

Publication Date: 2022

$20.00

Alloy 182 is an austenitic (FCC) nickel base Ni-Cr-Fe-Mn weld metal that is used as a weld filler or weld pad metal to join stainless steel reactor internals, reactor instrumentation penetrations and main coolant piping to the low-alloy steel reactor pressure vessel. Stress corrosion cracking (SCC) in alloy 182 dissimilar welds is one of the most important material degradation problems and an ongoing issue in boiling (BWR) and pressurized water reactors (PWR) world-wide with potential safety concerns.
Thermally activated preferential local ordering (unlike atom pairs is greater than that in a random solution) of elements within a lattice, over spatial dimensions that are typically on the order of a few nearest neighbor spacing 20 to 50 Å (2 to 5 nm) is referred as short range ordering (SRO). SRO causes lattice contraction and induces additional stress which is claimed as the driving force for SCC in the alloy 600, alloy 690, and alloy 182.

Products tagged with 'crack'

Pitting Corrosion Damage Characterization of Stainless Steel Reinforced Concrete Beams

Stress Corrosion Cracking Behaviour Of Thermally Aged Alloy 182

Association for Materials Protection and Performance