Crevice corrosion properties and chemical thermodynamic evaluation of the corrosion system

Jung, Jun-Young; Park, S. Y.; Won, Hoyoun; Kim, S. B.; Choi, Wang-Kyu; Moon, Jei‐Kwon; Park, S. J.

doi:10.1007/s10967-015-4112-7

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…Crevice formers designed according to ASTM G48 were reported involving crevice corrosion [10]. In Jung et al's work, a Teflon shim was inserted in two steel plates which were connected by bolts and nuts [11]. The crevice formed in Jung's study was a skew crevice with a continuously changed width.…”

Section: Introductionmentioning

confidence: 99%

Crevice Corrosion Behaviors Between CFRP and Stainless Steel 316L for Automotive Applications

Sun

Wang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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Carbon fiber reinforced plastics (CFRP) are promising lightweight materials for vehicle applications. 316L is one of the most widely used types of austenite stainless steels and applied in lots of automotive applications. The existence of crevices will result in galvanic corrosion and crevice corrosion when CFRPs and 316L are directly connected. A crevice former for the galvanic system was therefore designed and applied to evaluate the crevice corrosion behaviors and study the mechanism of galvanic crevice corrosion through several electrochemical techniques in this research. The results showed that the crevice corrosion of galvanic systems grew from crevice mouth to the inside crevice and could be divided into four steps, metastable pitting corrosion at the crevice mouth, initiating step of crevice corrosion, propagating step and ending step of crevice corrosion. Because of the influences of the galvanic system, electrode reaction rates were speeded up and the passivation region was shortened at the initiating stage of crevice corrosion. Corrosion rate was observed to be higher in the galvanic system than that in normal crevice systems.

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Section: Introductionmentioning

confidence: 99%

Crevice Corrosion Behaviors Between CFRP and Stainless Steel 316L for Automotive Applications

Sun

Wang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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Kinetics of Reductive Dissolution of a Magnetite Specimen Using Oxalic Acid

et al. 2022

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The removal of radionuclides from the primary coolant system of nuclear power plants occurs with the dissolution of corrosion metal oxide layers deposited with the radionuclides. Kinetic dissolution experiments were conducted with a synthetic magnetite specimen in the form of a thin plate using an aqueous solution of oxalic acid as a reducing agent. The effects of acid concentration and temperature were investigated on the kinetics of the reductive dissolution of a magnetite specimen. In particular, the kinetic experiments were performed in a wide temperature range from low (57 °C) to high (120 °C), above the normal boiling point of water. The dissolution of magnetite increased with increasing acid concentration and temperature. The acid concentration dependence of the dissolution reaction rate of Fe at a given temperature was correlated with the nth power of the oxalic acid concentration. Additionally, the temperature dependence of the dissolution reaction rate of Fe at a fixed oxalic acid concentration was studied with an Arrhenius-type equation.

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Crevice corrosion properties and chemical thermodynamic evaluation of the corrosion system

Cited by 2 publications

References 8 publications

Crevice Corrosion Behaviors Between CFRP and Stainless Steel 316L for Automotive Applications

Crevice Corrosion Behaviors Between CFRP and Stainless Steel 316L for Automotive Applications

Kinetics of Reductive Dissolution of a Magnetite Specimen Using Oxalic Acid

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