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Metals - Corrosion

Screening and development of corrosion inhibitors for al alloys

Screening and development of corrosion inhibitors for al alloys

... Galvanic corrosion is an electrochemical process that takes place when two different metals (materials) are connected electrically in a conductive electrolyte ...the corrosion phenomenon, if the ...

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Understanding corrosion mechanisms of novel biodegradable magnesium alloys

Understanding corrosion mechanisms of novel biodegradable magnesium alloys

... The loss of function of tissue and/or body structures, by external or body internal factors, leads to the use of biomaterials, replacing or augmenting functionalities. Some requirements as to be fulfilled to use a ...

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Corrosion in Electronic Devices and Sensors to Prevent Corrosion

Corrosion in Electronic Devices and Sensors to Prevent Corrosion

... Figure 4 showed the PCB of a remote control of TV where a white fluffy precipitation was found surrounding the soldering. Such deposition is termed as dendrites. As Printed circuit boards can suffer from variety of ...

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Steel Piling Corrosion Management of Al-Zubare Harbor

Steel Piling Corrosion Management of Al-Zubare Harbor

... background: Corrosion and in particular corrosion of metal structures, is a problem that must regularly be addressed in a ...electrochemical corrosion often experienced by ...

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Diamond microelectrodes for corrosion studies

Diamond microelectrodes for corrosion studies

... noble metals, there is a considerable range of electrochemically interesting metals such as silver, palladium, iridium, tungsten, etc, which are well described in specialized literature ...of metals ...

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Corrosion, wear and wear –corrosion behavior of graphite-like a-C:H films deposited on bare and nitrided titanium alloy

Corrosion, wear and wear –corrosion behavior of graphite-like a-C:H films deposited on bare and nitrided titanium alloy

... at its surface in the presence of oxygen [1–3]. However, in some applica- tions (in ankle and hip joints, for instance) superior mechanical wear and, mainly, wear–corrosion resistance are required, but not ...

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Heavy Metals Concentrations in Groundwater Used for Irrigation

Heavy Metals Concentrations in Groundwater Used for Irrigation

... heavy metals in ru- noffs and sewages are urban and industrial effluents, deterioration of sewerage pipe and treatment works, and the corrosion of household plumbing fixtures [1, ...Heavy metals such ...

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Active corrosion protection of AA2024 by sol-gel coatings with corrosion inhibitors

Active corrosion protection of AA2024 by sol-gel coatings with corrosion inhibitors

... alloying metals the corrosion susceptibility of alloys increases, especially in chloride ...of corrosion, especially in chloride containing ...localized corrosion activity which was a subject ...

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HEAVY METALS IN VINEYARDS AND ORCHARD SOILS

HEAVY METALS IN VINEYARDS AND ORCHARD SOILS

... heavy metals such as copper (Cu) and zinc (Zn), up to the toxicity threshold for fruit trees and cover ...heavy metals, especially Cu and Zn, on soils cultivated with fruit trees and provides some agronomic ...

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LIMING EFFECT ON SOIL HEAVY METALS AVAILABILITY

LIMING EFFECT ON SOIL HEAVY METALS AVAILABILITY

... heavy metals availability is impacted by soil ...heavy metals toxicity is one of the main forms of abiotic stre- ss that may cause harmful effects to plant and animal health (Lisjak et ...heavy ...

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Shadow masks by electrochemical corrosion for electro-optic devices.

Shadow masks by electrochemical corrosion for electro-optic devices.

... SHADOW MASKS BY ELECTROCHEMICAL CORROSION FOR ELECTRO-OPTIC DEVICES. Shadow masks are used in manufacturing processes for electro-optic devices to transfer patterns with different shapes and dimensions. For ...

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Mapping local corrosion parameters using SVET and SIET

Mapping local corrosion parameters using SVET and SIET

... 41 In spite of becoming a valuable approach for in situ determination of local corrosion activities, SRET has limited sensitivity and resolution while measuring rather small local potentials [82]. SRET sensitivity ...

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Corrosion Inhibition of Titanium in Artificial Saliva Containing Fluoride

Corrosion Inhibition of Titanium in Artificial Saliva Containing Fluoride

... Figure 4 show the impedance diagrams recorded for titanium grade 2 in different medium to examine the concentration of eugenol effect. In case fluoride medium at pH2 the impedance curve is in the form of a half-circle ...

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Electrochemical corrosion characterization of nickel aluminides in acid rain

Electrochemical corrosion characterization of nickel aluminides in acid rain

... pitting corrosion sites are seen and caused by the presence of NaCl ...of corrosion products onto the metallic surfaces was not observed, indicating that they were soluble and dissolved during the washing ...

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Corrosion Resistance Evaluation of HVOF Produced Hydroxyapatite and TiO

Corrosion Resistance Evaluation of HVOF Produced Hydroxyapatite and TiO

... 3), but a decrease of resistance at around the open circuit potential for freshly prepared samples (Table 2). The samples used for impedance studies were stored at room conditions before tests which might developed more ...

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Embrittlement and Corrosion Decay of a Cast Duplex Stainless Steel

Embrittlement and Corrosion Decay of a Cast Duplex Stainless Steel

... • Samples aged at 475 °C for periods up to 8 h were not sensitized in DL-EPR tests with 2 M H 2 SO 4 + 0.01 M KSCN + 0.5 M NaCl solution at room temperature. However, the sample aged for 12 hours showed chromium carbides ...

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Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior

Heat Exchanger Tube to Tube Sheet Joints Corrosion Behavior

... galvanic corrosion measurements, potentiostatic measurements, linear polarization, pitting scans, Tafel plots measurements ...yields corrosion rate ...the corrosion potential ...

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CORROSION RESISTANCE OF ALUMINUM CANS IN CONTACT WITH BEER

CORROSION RESISTANCE OF ALUMINUM CANS IN CONTACT WITH BEER

... Aluminum cans with an organic coating are used in Brazil as packaging for carbonated beverages (soft drinks, beer), which act as electrolyte solutions. These electrolytes, in contact with the inner metal can, initiate a ...

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Susceptibility of Arcobacter butzleri to heavy metals

Susceptibility of Arcobacter butzleri to heavy metals

... heavy metals was assessed using an adaptation of the double dilution agar method for determining antibiotics minimal inhibition concentration ...heavy metals were prepared. The following heavy metals ...

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Active sensing coating for early detection of corrosion processes

Active sensing coating for early detection of corrosion processes

... A corrosion sensing coating based on specially developed polymeric microcapsules with a pH-indicator is ...of corrosion processes through a pink coating coloration, as a result of local pH increase in the ...

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