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Hydrogen cracking

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Hydrogen cracking is a weld crack caused by the presence of hydrogen in the weld.[1] Hydrogen cracking normally occurs in the heat affected zone where hard microstructure is to be found, occasionally it can occur in weld metal.[2]

References

  1. http://www.bocindustrial.co.uk/bocindustrial/technical/glossary/a.asp
  2. http://www.gowelding.com/weld/preheat/preheat.htm
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