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Cracks appeared after solution treatment during normal welding of 321 stainless steel

2018-06-29View Original

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Stainless steel 321 can be welded normally with satisfactory radiographic results; however, cracks appear after solution treatment. By changing the welding process and first performing stabilization treatment, followed by normalizing at 900°C and then cooling to room temperature before carrying out solution treatment, no cracks were detected. Could some expert please explain this? Thank you

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