Chloride-induced corrosion resistance of high-strength stainless steels in simulated alkaline and carbonated concrete pore solutions

Innovations in cement-based materials: Addressing sustainability in structural and infrastructure applications

“…The higher materials costs of austenitic or duplex stainless steel have been shown to be compensated by reductions in maintenance over a 75-year service life. 66 Whereas stainless steels have more-than-adequate strength and corrosion resistance for infrastructure applications, 69 improvements in ductility are sought; investigations into twinning-induced plasticity can improve ductility while retaining strength, 70 but gains in stress-corrosion-cracking resistance and weldability are also desirable.…”

Spatial distribution of crystalline corrosion products formed during corrosion of stainless steel in concrete

“…Therefore, even though the corrosion initiated and propagated for both steel specimens, the corrosion resistance of the 16 wt.% Cr steel was still significantly higher than that of the 10 wt.% Cr steel, even during the corrosion propagation period. Higher corrosion resistance of this steel during passivity is attributed to the composition of the passive film and is dependent on the chemical composition of the bulk material [20][21][22].…”

“…Because of rising nickel prices, however, new types of corrosion resistant steels with lower percentages of alloying elements have been developed, e.g., low-nickel, high-chromium corrosion-resistant steels, which can be a costeffective corrosion resistant alternative to highly alloyed stainless steels. So far, published research on these types of steel as concrete reinforcement has focused on the corrosion initiation phase, mainly on the characterization of the passive film, and on the critical conditions for the onset of corrosion [20][21][22][23][24]. Long-term research of corrosion behaviour of these steels in concrete is very scarce, especially those aiming at evaluating the real-time propagation of corrosion and the formation of corrosion products.…”

A new chemo-mechanical model of damage in concrete under sulfate attack

“…In the environment of ocean or salt lake, the mechanical properties of concrete structures strongly degrade by attack of harmful ions, such as chloride ions, sulfate ions, magnesian ions, and so on [1,2]. It is well known that chloride ions dominantly attack reinforcing steel and induce it to corrosion, and magnesian ions react with C-S-H gel, and lead to calcium leaching.…”