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Monday, May 27, 2019

What You Need To Know About Pitting Corrosion

By Christopher Kelly


One of the most stable and durable materials readily available in the market is metal. With several varieties and components to choose from, one can easily consider it as one of the most versatile and flexible items to work with. Nevertheless, they can still be susceptible to certain types of damage. Here are some interesting facts you need to know about rust pitting.

The first thing we need to know first is its definition. Pit corrosion refers to damage in a particular area of a metal. Its defining characteristic is the fact that it looks like a collection of holes or pits, thus making the surface look hollow and unsafe. Considering that it starts at a molecular level first, it may be hard for users to detect early signs of damage until it is too late.

There are several factors that contribute to its formation. The first is the fact that users picked certain metal that may be susceptible to early damage. While this component is considered some of the most durable materials to work with, some options are more susceptible to pitting. Some examples include low alloy options, stainless steel, and aluminum alloy.

To expand on the environmental factor, this includes chemical and mechanical damage to the protective oxide film. For chemical factors, this could either be due to excess acidity, high concentrations of chloride, and low dissolved oxygen concentrations. Since they target at a chemical level, most often find it hard to detect the first signs of damage.

Last is using a combination of both metal and nonmetal materials. Nonmetal components like wood are often fragile to extreme weather conditions which are why they are often combined with more stable materials like stainless steel. However, this does not guarantee overall safety since neither is able to compensate each weakness thus resulting in more cavities to form.

When left ignored for too long, corrosion can lead to a number of safety hazards. For instance corroded roofs can invite harmful air, increased moisture levels, and even rodents to get inside your home, while damaged bridges may lead to vehicular accidents, dents, and even topple over if it is built over a body of water. Some of which have been recorded in history as a precautionary tale.

In order to prevent these instances, users are expected to follow a series of preparatory steps during construction. This includes choosing the right material to work with during your project to ensure the best possible finish. For instance, picking materials with higher alloy reduces the chances of corrosion unlike low alloy materials which have a higher risk.

Last is having a sense of control over certain factors. Indoor projects that involve metal can be kept safe from harm by following certain measures. These include making sure your pH levels, chloride concentrations, and temperatures are at an ideal setting. Otherwise, it could lead to exacerbation of pit formation thus shortening the lifespan of your hard work.

Pit corrosion can lead to a lot of dangers if not taken care of properly. Considering that most injury occurs beyond surface level, one does not immediately notice some of its early stages of said problem until it is too late to recover from it. To prevent this, clients are expected to follow reliable safety measures while also seeking counsel from an expert contractor.




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