crack
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Cracks have appeared at the weld vicinity (straight edge) on the head of the LNG tank – what is the cause? Please help analyze this
It is usually stress corrosion, with the heat-affected zone of the weld being the most affected area.
The original poster could provide more details: the specific materials and thicknesses, as well as whether the cracks occurred during the manufacturing process or during use How can one make a judgment without specific details?
It would be better to include an image; analyzing things this way can make it a bit more comprehensive