Weld defects/imperfections

The characteristic features and principal causes of common weld defects are described. General guidelines on best practice are given so that welders can minimise the risk of imperfections during fabrication.

• Weld defects / imperfections - incomplete root fusion or penetration
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• Weld defects / imperfections in welds - lack of sidewall and inter-run fusion
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• Defects / imperfections in welds - porosity
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• Defects / imperfections in welds - slag inclusions
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• Defects - solidification cracking
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• Defects - hydrogen cracks in steels - identification
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• Defects - hydrogen cracks in steels - prevention and best practice
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• Defects - lamellar tearing
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• Defects - reheat cracking
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