When applying composite repairs to high-strength pipeline steel, several practical considerations are crucial to mitigate the risk of hydrogen embrittlement. Hydrogen embrittlement is a phenomenon where hydrogen atoms diffuse into the steel, making it brittle and susceptible to cracking. Surface preparation is paramount. Thoroughly cleaning the steel surface to remove all traces of corrosion products, scale, and contaminants is essential. These contaminants can trap moisture and create conditions that promote hydrogen generation. Abrasive blasting is typically used, followed by solvent cleaning. Sele....
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