How do you detect corrosion?

Answer 1

if you mean corrosion the battery...it looks like a white rust look around the two ends of the battery (the + positive and the - negative) BUT not all the time u will able to see corrosion on the ends....if that's the case unscrew the termanels in and out to get a good connection....normally if there is no power at all the ground (negative) is the most common but that doesnt mean its the negative

Answer 2

To correctly measure corrosion use electrochemical instrumentation:

A number of electrochemical techniques have been developed specifically for corrosion measurement.

These are generally referred to as "DC Techniques".

Among these techniques are Polarization Resistance, Tafel Plots, Potentiodynamic Plots, Cyclic Polarization, and Electrochemical Potentiokinetic Reactivation.

Corrosion is the chemical or electrochemical reaction between a material, usually a metal, and its environment that produces a deterioration of the metal and its properties.

A chemist would classify corrosion as an oxidation, an electron-transfer reaction involving the loss of electrons.

Since corrosion is an electrochemical process, it follows that electrochemical techniques and electrochemical instrumentation can be used to study the corrosion process.

The reasons for the popularity of electrochemical techniques for corrosion measurement are based in practicality:

-They are fast. Corrosion, even rapid corrosion, is a slow process. Real-time weight loss measurements need days and sometimes weeks to make a reliable measurement of corrosion rate. Electrochemical instrumentation can make a corrosion rate measurement in minutes or hours.

-They are sensitive. Modern, well-designed electrochemical instrumentation can measure extremely low corrosion rates.

-They are accurate. Electrochemical techniques have been exhaustively tested before finding general acceptance. Organizations such as ASTM and NACE have sponsored a number of symposia and published peer-reviewed papers describing the use and results of these techniques.

-They are versatile. Electrochemical techniques can be used to study a wide range of corrosion-related phenomena. The rate of uniform corrosion can be measured. The tendency of a metal to exhibit localized (pitting or crevice) corrosion can be measured. The passivation behavior of a corroding system can be studied. Galvanic corrosion can be quantitated. Sensitization effects can be studied. Electrochemistry can be used in the laboratory or in the field. Measurements can be made on the lab bench or in a pipeline or in an autoclave or in a slow strain rate machine.

Kimber :)

Answer 3

to identify corrosion is to look for rust of pitted

aluminum gets a white powdery fill, usually to salt exposer.

copper gets a green powdery fill.

Answer 4

Normally before a substance has been corroded it is 'smoother'. When a substance corrodes, especially metals, they will turn a very rusty, coppery colour and will dissolve.

Answer 5

- the aspect of the material is more or less changed
- the mass is changed

Answer 6

Rust!