Important Facts Must Know About Corrosion

Corrosion causes a good deal of problems in maintenance. Machines become worn out, structures become diminished, look becomes tarnished and metals such as iron don’t last as long as we wanted them to.

Yet not every sporting of machines could be attributed to corrosion. Erosion, abrasion, and scuffing may also wear down machines. However, the significant reason behind machine wear down remains corrosion. Why is that?

We are living in a world of corrosion and chemicals is a chemical reaction. In the process, metal is dissolved. Since iron and steel is used in virtually every machine and construction, we especially need to avoid corrosion inside them. Browse online websites if you want to know more about “Importer and distributor of steel pipes and valves” (which is also known as “ผู้นำเข้าและจัดจำหน่ายท่อเหล็กและวาล์วต่างๆ” in the Thai language ).

Corrosion of steel and iron happens only when 3 conditions occur:

1. A potential difference exists.

2. The surfaces are coated with an electrolyte.

3. Oxygen is present.

Potential Difference
Acids are the chief offender in any rust. Sulphuric acid from acid rain causes a whole lot of corrosion damage. However, lots of people do not understand it’s the movement of electrons from the chemicals that causes the iron to become dissolved. The potential distinction is the one which causes the electrons to flow in a closed electric circuit, similarly to a battery.

Galvanic Corrosion
From the galvanic series of metals, noble metals such as gold, silver, and platinum are resistant to the attack of acids. They’re considered inactive. The most active are compounds such as potassium and sodium. Somewhere in between those extremes are metals such as iron, copper, zinc, tin, etc..