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Intergranular Corrosion Intergranular corrosion is a localized form of attack occurring at the grain boundaries of a metallic materials with nominal or no effect on the grains. It affects metal’s strength and ductility. This type of corrosion occurs quickly affecting the metal deeply and damaging it. While using austenitic stainless steels, the corrosion is caused … Continue reading Intergranular and Galvanic Corrosion of Materials

Metallization refers to wiring of the different components together to receive a functioning circuit. The spraying process is normally the spraying of molten metal on the surface to create the coating. The material in the wire form is melted in a flame and atomized by using compressed air to develop a fine spray. When spray … Continue reading Metalizing wire for different components bonding

Various components in metal processing units are exposed to rigorous wear and corrosion that can be protected by thermal spray coatings to maintain their service. The main components that can be secured by thermal spray are configured in electric arc furnace, oxygen furnace, molds, casting dies, casting salvage, molten metal containment, steel mill rolls in … Continue reading What are the benefits of Thermal spray Coatings in metal processing plants

Sulfuric acid is a special chemical in comparison to other mineral acids. Considering the freezing point of acid solutions, it varies in apparent non-uniform manner. Peculiarities also increase to the corrosion zone, particularly where austenitic stainless steels are associated. Acid concentration and temperature are essential factors however in some cases the availability of oxidizing or … Continue reading Corrosion resistance performance of Incoloy alloy 825 in sulfuric acid

Heat exchangers are commonly used in various processes such as chemical, fertilizer, petrochemical, fossil and nuclear power production, refrigeration, desalination and other. They are always of special importance and their significance has increased with increasing energy demands. It is essential to make the maximum use of energy resources by using economical and efficient heat exchangers. … Continue reading Selection of materials for heat exchangers

The role of stress is generally considered or the stress intensity factor in case of precracked samples as an effect with the passage of time in a given system. There is a threshold stress value below which corrosion does not occur even for long test duration. The threshold stress is not just a function of … Continue reading How stress influences Stress corrosion cracking

Inconel 718 is a widely used superalloy that is relatively economical however has good mechanical characteristics. Inconel 718 is heat processed at different temperatures. The grain sizes were measured on both samples by using Light Optical Microscope. The mechanical test results show the damage of tensile strength and hardness while enhancement of creep life with … Continue reading Effect of grain size on mechanical properties of Inconel 718

Inconel 718 is one of the most essential super alloys and is widely used in aerospace and aviation for its high mechanical strength, good resistance to fatigue and creep, supreme corrosion resistance and potential to serve regularly at the high temperatures. In this post, we evaluate the pitting corrosion resistance potential of Inconel 718 before … Continue reading Pitting potential of Inconel 718 in chloride base aqueous solutions

Today a large range of materials are used in broad spectrum of aggressive chemicals. As chemicals and their properties vary on a large level, it is tough to select a suitable material for a specific chemical application. Commonly used materials in chemical applications are: 316 stainless steel- An alloy of iron, carbon, nickel and chromium, … Continue reading Best alloys for use in chemical media

Duplex Stainless Steel- Austenitic Ferritic stainless steels were initially made for use in the paper plants to prevent corrosion problems due to chloride bearing cooling water and other aggressive chemical process fluids. Containing high concentration of chromium, nitrogen, and molybdenum, these steel materials provide supreme resistance to localized and uniform corrosion. Their duplex structure introduces … Continue reading Which alloys can be used in gas extraction and purification plants?