Nickel-Cobalt Alloy Coating Protects Steel Fasteners from Hydrogen Embrittlement

 

  • Nickel-Cobalt Alloy Coating Protects Steel Fasteners from Hydrogen Embrittlement

    3:42 AM | July 21st, 2018

    At the beginning of the year, Kathy Riggs Larsen of Materials Performance spoke with Doxsteel Corrosion specialists Omar Rosas and Oscar Garcia about the dangers of hydrogen embrittlement. A form of stress corrosion cracking (SCC), hydrogen embrittlement occurs when hydrogen penetrates a bolt’s base material, causing the steel to become brittle and susceptible to fracture. To prevent the permeation of hydrogen in production and provide a barrier to hydrogen in service, Rosas and Garcia have extensively tested bolting solutions using a controlled application of ASTM B994 SC18 Class 1 Nickel-Cobalt alloy.

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