Effect of immersion time on electrochemical and morphology of new Fe-Co metal-metal glassy alloys in acid rain

Al-Harbi, Albandaree K.; Emran, Khadijah M.

doi:10.1016/j.arabjc.2018.01.019

Cited by 10 publications

(3 citation statements)

References 29 publications

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“…From S5a, † for the Co deposit, the plots show one depressed capacitive loop, which is oen attributed to frequency dispersion resulting from inhomogeneity or surface roughness. 58,73 The Im-IL signicantly affects the high-and lowfrequency loop. The diameters of the capacitive loops of Co and Ni in the presence of the Im-IL additive are greater than those for the Im-IL-free baths.…”

Section: Crystal Structure and Surface Morphologymentioning

confidence: 99%

A novel viewpoint of an imidazole derivative ionic liquid as an additive for cobalt and nickel electrodeposition

et al. 2020

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Section: Crystal Structure and Surface Morphologymentioning

confidence: 99%

A novel viewpoint of an imidazole derivative ionic liquid as an additive for cobalt and nickel electrodeposition

et al. 2020

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“…It also releases metal ions such as aluminum, cadmium, lead, and mercury in the soil and enters the human body through the food chain, such as food and fish, which seriously harms human and bi-ological health. Many investigations and studies have shown that the harmful effects of acid rain on materials and cultural relics, and historic sites have been widespread [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…XPS analysis suggests that the corrosion product is mainly composed of oxide and hydroxide of magnesium and aluminum, and a small amount of sulfate is also contained in the film. A. K. Al-Harbi et al [8] investigated the electrochemical behavior of two Metal-Metal glassy alloys Fe 78 Co 9 Cr 10 Mo 2 Al1 (VX9) and Fe 49 Co 49 V 2 (VX50) (at.%) at different immersion times in artificial acid rain using electrochemical techniques. VX9 alloy has higher corrosion resistance than VX50 due to good protective elements such as Cr 10% that create chromium oxide.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior of CoCrNiAl high entropy alloy and other typical metals in simulated acid rain solution

Qiu¹,

Liu²,

Jia³

et al. 2023

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In order to study the accelerated electrochemical corrosion behavior under simulated acid rain, CoCrNiAl high entropy alloy (HEA) was prepared. The electrochemical performance of CoCrNiAl HEA and other typical metals (Q235 steel, AZ31 magnesium alloy, and 1060 aluminum alloy) in simulated acid rain solution with different pH (3.5, 4.0, 4.5, and 5.0) were studied. The results show that the microstructure of CoCrNiAl HEA is mainly composed of dendrites (DR). The alloy exhibits the diffraction patterns of the disordered A2-bcc phase with the ordered B2-bcc phase. Ni-Al is rich in dendrites, and Cr is rich in interdendritic (ID) regions that consist of the A2/B2. The CoCrNiAl HEA has excellent corrosion resistance in simulated acid rain solution with pH = 3.5, 4.0, 4.5, and 5.0. The self-corrosion current is reduced by 1-2 orders of magnitude compared with other typical metals. The self-corrosion potential is higher than for other typical metals except in a solution with pH = 5. The CoCrNiAl HEA has excellent pitting corrosion resistance. The corrosion resistance of CoCrNiAl HEA is related to the uniformity and compactness of the microstructure, passive surface film, and corrosion resistant elements in the alloy. The dense corrosion products on the surface also play a role in reducing the corrosion rate. The corrosion mechanism of the prepared CoCrNiAl alloy is intergranular corrosion when it comes into contact with a simulated acid rain solution, and then with the extension of time, the corrosion mechanism changes to uniform corrosion. K e y w o r d s : corrosion performance, high entropy alloy, simulated acid rain, vacuum casting, microstructure

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Different Impacts on the Corrosion Behavior of Metal–Metal Glassy Alloys in Sulfuric Acid

Emran

Al-Harbi

2018

J Inorg Organomet Polym

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Effect of immersion time on electrochemical and morphology of new Fe-Co metal-metal glassy alloys in acid rain

Cited by 10 publications

References 29 publications

A novel viewpoint of an imidazole derivative ionic liquid as an additive for cobalt and nickel electrodeposition

A novel viewpoint of an imidazole derivative ionic liquid as an additive for cobalt and nickel electrodeposition

Corrosion behavior of CoCrNiAl high entropy alloy and other typical metals in simulated acid rain solution

Different Impacts on the Corrosion Behavior of Metal–Metal Glassy Alloys in Sulfuric Acid

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