Wherever there is metal, there is usually the potential for damaging rust to form. Corrosion can have a huge financial impact on a company’s bottom line. Rust is extremely unforgiving; once it occurs, it spreads swiftly and can quickly erode a metal surface. Rust is particularly damaging to copper, aluminum, magnesium, titanium, and iron.
If exposed to sufficiently reactive circumstances, almost all materials will corrode. Moisture in the air, seawater, sour service conditions, and a variety of other factors can all contribute to this.
The global cost of corrosion is projected to be $2.5 trillion per year or more than 3% of global GDP.
Corrosion can be predicted, regulated, minimized, or even prevented totally in many circumstances by using the right materials, under the right conditions, and with careful monitoring. All this can be made possible with regular corrosion analysis.
Corrosion testing is a term used to describe the techniques used by laboratories to solve, prevent, or minimize corrosion problems.
These procedures are commonly used in failure analysis and can be applied to industrial materials and infrastructure goods.
These tests can help with material selection and processing decisions. Testing might also indicate areas where performance could be improved.
Types of corrosion analysis or corrosion testing:
- SALT SPRAY TEST: Metals such as steel, aluminum, and iron make up a substantial component of an automobile, and they are frequently corroded by environmental corrosive agents such as water, moisture, mist, humidity, and vapors. Vehicle makers must guarantee that the metals utilized and the protective coatings applied are of sufficient quality to survive these corrosive attacks.
- At Sigma Test and Research Centre, we perform testing services in our lab to determine the strength and sturdiness of the anti-corrosive films put to the vehicle’s metallic components. The protective film that is deposited over the metals is tested to ensure that it meets safety standards and follows regulatory norms.
- SALT FOG TESTING: Salt fog is a form of spray test in which a vehicle is maintained in a chamber and is continuously sprayed with salt fog at a set temperature. This aids in determining the endurance of the protective layer placed to the vehicle’s body and its counterparts, as well as its resistance to corrosive salts. We provide highly accurate and reliable salt fog testing services to ensure that protective coatings on cars are suitable in a certain simulated environment.
- HYDROGEN EMBRITTLEMENT: The hydrogen embrittlement method is employed when steel becomes brittle and cracks as a result of subsequent hydrogen diffusion. The second factor for spread is environmental stress. When hydrogen is put on the surface of a metal and each hydrogen atom is independently dispersed through the metal, the main reason for diffusion is the material and chemical properties of the metal.
- SENSITIZATION: When stainless steel is heated incorrectly, it forms an excessive amount of chromium carbides at the grain boundaries, resulting in sensitization. Intergranular attack (IGA) and intergranular corrosion (IGC) are two types of corrosion that cause sensitization.
There are many other corrosion tests offered at Sigma, to know more:
Benefits of corrosion analysis:
- Routine testing is necessary for industrial applications to ensure that quality standards are met.
- Corrosion Testing has become more widespread as a result of the damaging nature of rust and other types of corrosion. Tests have been devised to determine the thresholds at which corrosion forms in companies that employ metal substantially in their manufacturing processes.
- Manufacturers can use the results from corrosion testing services to build preventative measures for the manufacturing process, as well as establish which materials are better at resisting corrosion.
- Corrosion testing can be used to anticipate a material’s resistance to corrosion, compare different materials, and evaluate a material’s behavior in a specific corrosive environment.
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