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Picture for Severe microbiologically influenced corrosion (MIC) of pure zinc and galvanized steel in the presence of Desulfovibrio vulgaris
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Severe microbiologically influenced corrosion (MIC) of pure zinc and galvanized steel in the presence of Desulfovibrio vulgaris

Product Number: 51320-14537-SG
Author: Di Wang, Tuba Unsal, Tingyue Gu, Sith Kumseranee, Suchada Punpruk
Publication Date: 2020
$20.00

Zinc and its alloys are used as sacrificial anodes because zinc is an active metal. Carbon steel can be coated with zinc to protect against corrosion. These metals are known as galvanized steel. In this work, microbiologically influenced corrosion (MIC) of pure zinc and galvanized steel caused by a sulfate reducing bacterium was investigated. After 7 days of incubation in 125 mL anaerobic vials with 100 mL culture medium and 1 mL inoculum, the sessile cell count on the galvanized steel was slightly higher than that on pure zinc. The abiotic weight loss for pure zinc was 1.4 ± 0.1 mg/cm2 vs. 4.6 ± 0.1 mg/cm2 for galvanized steel after 7 days of anaerobic incubation at 37oC. The weight losses for galvanized steel and pure zinc were 31.5 ± 2.5 mg/cm2 and 35.4 ± 4.5 mg/cm2, respectively, which were 10X larger than the previously reported carbon steel weight loss in the same SRB broth. Electrochemical corrosion tests confirmed the severe corrosion of these two metals. The corrosion current densities of galvanized and pure zinc were 25.5 µA/cm2 and 100 µA/cm2, respect􀀀vely at the end of the 7-day incubation with SRB, confirming that pure zinc was more prone to SRB MIC than galvanized steel. In both cases, the corrosion product was mainly ZnS. Three MIC mechanisms were possible for the severe corrosion. Extracellular electron transfer MIC is thermodynamically favorable for Zn. Furthermore, the detection of H2 evolution in the vials suggest that proton attack and H2S attack occurred against Zn in the SRB broth with neutral pH after passive film damage by the SRB biofilm. 

Picture for Should Socket Welds Be Used In Sour Service Process Environments And What Are The Quality Control Requirements?
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Should Socket Welds Be Used In Sour Service Process Environments And What Are The Quality Control Requirements?

Product Number: 51321-16536-SG
Author: Jan Baas
Publication Date: 2021
$20.00
Picture for Silica Nanocapsules Based On Gemini Surfactant As Environmentally Friendly Nanocontainers For Corrosion Protection In Seawater
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Silica Nanocapsules Based On Gemini Surfactant As Environmentally Friendly Nanocontainers For Corrosion Protection In Seawater

Product Number: 51321-16741-SG
Author: O. Kaczerewska; J. Fikgueiredo; S. Loureiro; I. Sousa; R. Martins; J. Tedim
Publication Date: 2021
$20.00
Picture for Silicate Scale Inhibitor Evaluation and Applications
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Silicate Scale Inhibitor Evaluation and Applications

Product Number: 51321-16281-SG
Author: Haiping Lu/Ya Liu/Bill Watson
Publication Date: 2021
$20.00
Picture for Silver Sulfidation Kinetics in Sulfur Vapor-Bearing Environments
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Silver Sulfidation Kinetics in Sulfur Vapor-Bearing Environments

Product Number: 51315-5791-SG
ISBN: 5791 2015 CP
Author: Barry Hindin
Publication Date: 2015
$20.00
Picture for Slurry Abrasion Failure Of A Carbon Steel Pipe Carrying Bitumen Froth In Oil Sands
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Slurry Abrasion Failure Of A Carbon Steel Pipe Carrying Bitumen Froth In Oil Sands

Product Number: 51321-16941-SG
Author: Reinaldo J Chung; Naveen Prathap; Shawn Chen; Jiaren (Jimmy) Jiang; Darren Ting; Marilin Garcia
Publication Date: 2021
$20.00