Hydrogen embrittlement of copper

Physical-Chemical Mechanism of Action

Hydrogen reacts chemically with oxygen-containing copper (Cu) and forms steam bubbles. These bubbles grow when the material is subjected to heat, leading to internal cracking.

Metallurgical Relevance & Risks in Welding

Hydrogen disease can lead to severe failure of copper components and weld failures. Internal cracks form that are not visible and can significantly impair the material.

Workshop Practice & Action Instructions

When working with oxygen-containing copper under heat, use a dry environment. Avoid contact with hydrogen and steam. When welding, careful cooling is required to prevent the formation of steam bubbles.