Hydrogen embrittlement is a process where metals become brittle and lose their ductility due to the absorption of hydrogen. This phenomenon can occur during manufacturing, welding, or even in service when metals are exposed to hydrogen-rich environments. The presence of hydrogen can create cracks and weaken the metal structure, leading to unexpected failures. Commonly affected materials include high-strength steels and certain alloys, which are often used in critical applications like aerospace and automotive industries. Preventive measures, such as using coatings or selecting materials less susceptible to hydrogen, are essential to mitigate the risks associated with hydrogen embrittlement.