CORROSION TESTING

One of the most common and requested corrosion tests is the salt fog corrosion test, which simulates the exposure of materials to salt fog. This test can be performed in different variants, including neutral salt fog, saline-acetic, and copper-salt-acetic, depending on the client's needs and specific applications. The salt fog test is crucial for materials exposed to saline conditions, such as in the naval, aerospace, automotive sectors, and other industrial applications that require high corrosion resistance. In this test, material samples are subjected to a chloride-rich environment to simulate the effect of seawater and salty atmospheric exposure.

Another essential test in the field of metallic materials is the intergranular corrosion test, particularly for stainless steels. Intergranular corrosion can compromise the mechanical strength and longevity of materials, creating damages that are not immediately visible but can have devastating long-term effects. ASTM A262 is the standard regulating this test, providing guidelines to assess the resistance of stainless steels to this form of corrosion. Stainless steels are widely used in industrial applications due to their corrosion resistance, but it is critical to ensure they maintain this resistance under environmental or thermal stress conditions.

For duplex steel alloys, which combine austenitic and ferritic steel to ensure both mechanical strength and corrosion resistance, corrosion testing is crucial to assess their performance in harsh environments. According to ASTM A923, tests are conducted to analyze the corrosion resistance of duplex steels, particularly in chemical and marine environments where metals are subject to severe attacks. These steels are used in industrial plants, offshore constructions, and other high-performance applications, where ensuring long service life and reliability is critical.

Another essential test is the paint blistering test (according to ASTM D714), used to determine the corrosion resistance of paints and coatings applied to metallic materials and other surfaces. Painting is one of the main protection techniques against corrosion, and this test helps assess how paints resist moisture, temperature changes, and other external factors. This test is particularly important in the automotive industry, where the quality and durability of external coatings are essential for protecting vehicles from wear and environmental damage.

In the automotive industry, fluid resistance tests are crucial to evaluate the durability and performance of components exposed to fluids such as oils, fuels, coolants, and other chemicals. These tests simulate real-world conditions that materials undergo in vehicles and are essential to verify their resistance to corrosion and deterioration caused by fluids. These tests allow manufacturers to ensure that mechanical components and electronic systems maintain their performance over the long term, without being compromised by exposure to aggressive substances.