most probably hydrogen cracking
2018-02-11 12:38 GMT+02:00 pradip kumar Sil <pradipsil@gmail.com>:
Dear Everybody,--We are doing P-22 plate welding, thickness is 6 mm with E-9018B3 ( Dia 2.5 mm) electrode. Preheat is 150 to 200 degree centigrade with little beveling. Site is near the sea area.We found lot of delayed crack generally after 12 hours. Crack is coming middle of the weldment.Can anybody inform me cause & corrective action for the same.Pic attached for your ready reference.Thanks in advance.Regards,
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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Dr. Georgios Dilintas,
Dipl. Ing. In Aeronautic and Space Engineering
Ph.D in Mechanics of Solids - Computational Mechanics
A.I.S, A.N.I, IRCA Lead Auditor
Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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