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Paint Absorbs Corrosion-causing Chemicals

Engineers have incorporated clay and other chemicals into a paint, which

  • keeps metal from corroding; and
  • reveals when an airplane, boat, or bridge needs to be repainted.

 

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Due to Corrosion, Paint Failures on Structural Steel

The paint is still under development, early tests have shown that it prevents corrosion. But painted structural steel in buildings, bridges, pipes, tanks, vessels, etc. often experience premature corrosion, whereby rust under the coating film penetrates along the interface of the steel and paint coating.

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Forms of Microbial Corrosion in Concrete

Two forms of MSMA are responsible for the corrosive action and deterioration of the concrete structure. One form of MSMA is a process by which hydrogen sulfide is produced by anaerobic bacteria occurring below the flow line. The second form of MSMA is an aerobic process in which oxidized hydrogen sulfide produces sulfuric acid above the flow line.

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Japan's latest innovation: a remote-control roach

TOKYO - A big brown cockroach crawls across the table in the laboratory of Japan's most prestigious university. The researcher eyes it nervously, but he doesn't go for the bug spray. He grabs the remote. This is no ordinary under-the-refrigerator type bug. This roach has been surgically implanted with a micro-robotic backpack that allows researchers to control its movements. This is Robo-roach.

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Selection of stainless steels for handling sulphuric acid

When sulphuric acid concentrated, it is oxidising [Commercially concentrated acid is around 96 wt % (sg = 1.84)]; and it is reducing at low and intermediate concentrations. The response of most stainless steel types is that in general they are resistant at either low or high concentrations, but are attacked at intermediate concentrations.

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Fiberglass-reinforced plastic (FRP) corrosion

Plastics are often used to solve corrosion problems of metallics; so, one may be led to believe that they cannot be attacked by corrosion. But this is not true. It is well known in a pulp mill or a chemical plant, particularly by the maintenance staff; that, in time, corrosion damage may appear on plastic structures and components.

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Conductive Plastic Fights Corrosion

Corrosion poses great problems to our society. It is the process by which a material breaks down due to reactions with its surroundings, usually by means of oxidation. A new protection technique has been tested by the Universidad Autónoma de Madrid, that consists of the electrodeposition of a conductive polymer (polypyrrole) over the surface of a material like copper that is easily oxidised.

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Alkyd Mixed Paint, High Grade Crystal Floor Paint
Corrosion Prevention Paint-

Alkyd Mixed Paint

Alkyd Mixed Paint is formulated with vegetable oil, modified alkyd resin, pigments and organic solvent.

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Scale and Corrosion Inhibitor for Power Plant

TH-604 Scale
This scale is built with

  • Organophosphoric acid,
  • Polycarboxylic acid,
  • Carbon iron, and
  • Copper corrosion inhibitor.
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Biofilms in Drinking Water Distribution Systems

Significance and Control
A biofilm is a collection of organic and inorganic, living and dead material collected on a surface. It may be a complete film or, more commonly in water systems, small patches on pipe surfaces.

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Scale and Corrosion Inhibitor for Iron & Steel Plant

TH-601 Scale
This Scale is built with organophosphoric acid, polycarboxylic acid and carbon iron corrosion inhibitor.

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Treat Copper Pipe Corrosion

Copper tubes have been used to distribute potable water within building for many years. It is well recognized that the chemistry of the water traveling through the pipes can influence the formation and propagation of pits.

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Microbial and Non-microbial Corrosion of X60 Steel Exposed to Produced Water- Materials, Method

Microbial and Non-microbial Corrosion of X60 Steel Exposed to Produced Water- Materials, Method, and Result
In the presentation of an experimental study on the microbial and non-microbial corrosion of X60 steel immersed in produced water, it is shown that the metal corrodes with or without microorganisms in the produced water.

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Microbial and Non-microbial Corrosion of X60 Steel Exposed to Produced Water-Introduction

Comparative Study of Microbial and Non-microbial Corrosion of X60 Steel Exposed to Produced Water

 The laboratory investigation involves X60 steel coupons immersed in two batch reactors 1 [contains produced water with 0.5ppm dissolved ozone added on weekly basis to eliminate the microorganisms naturally present in the water] and 2 [contains the same volume of produced water with 2g of artificial fertilizer (NPK 15-15-15) added on weekly basis as nutrient-supplement to promote growth of microorganisms in the produced water]. It is shown that the corrosion rate of X60 steel influenced by microorganisms in the produced water is about 94% greater than non-microbial corrosion of the metal. The corrosion induced chemical reaction in both reactors is firstorder, and microbial corrosion results in pinhole-size pits on the surfaces of the metal.

 

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Auger electron appearance potential Spectroscopy, AEAPS

Auger electron appearance potential Spectroscopy AEAPS is one of several Appearance Potential Spectroscopies. In AEAPS, the onset of a new Auger electron emission channel is detected as the primary beam energy is increased. In fact it is not necessary to collect electrons from just the Auger peak, as the Auger electrons cause a secondary electron cascade which is far more intense.

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