Hydrogen embrittlement is a commonly occurred problem that has been experienced for several years. Recently even new and unexpected type of hydrogen embrittlement problem is seen in aerospace industry. This type of corrosion occurs when an essentially hydrogen free material is mechanically evaluated in gaseous hydrogen. It is well agreed among investigators that molecular hydrogen … Continue reading Occurrence of Hydrogen Embrittlement and how to prevent it

Advanced aircraft applications demand more reliable materials due to widely innovative technology. Designs are based on fuel efficiency and consistency. In addition to commercial uses, military based defense operations widely rely on the extreme performance of the aircraft engines. To receive the maximum performance at economical price, aerospace applications involve the use of components made … Continue reading Enhancing mechanical properties of Inconel 718 for aerospace applications

Carbon steels can easily deal with gaseous chlorine at low temperatures and in the absence of moisture. But if water is present, chlorine becomes vigorously corrosive to several metals. In the same manner, dry hydrogen chloride is not corrosive to various metals. As soon as it is dissolved in water HCl is developed and it … Continue reading How do different alloys perform in dry and moist chlorine media?

The influence of hydrochloric acid concentration on the corrosion rates of Monel 400 and nickel in air-free and air-saturated solutions at 30oC. It will be noted that the corrosion rates of Monel 400 and nickel at room temperature are about the same 10% acid concentration. In this concentration limit, the corrosion rates of both materials … Continue reading Influence of different HCl concentrations on Monel 400 and Nickel

Corrosion in chemical processing media often reduces with increase in their pH level. In alkaline solutions, hydrogen ions are usually present in nominal magnitudes. Although, various metals can withstand some pH, often basic in nature but experience severe corrosion with increase in pH level. Usually alkali corrosion is led by pitting and other types of … Continue reading Which high nickel alloy provides the best performance in alkali media