Effect of nitrogen addition on formation of secondary austenite in duplex stainless steel weld metals and resultant properties
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Cites background from "Effect of nitrogen addition on form..."
...The second pass welding promotes the transformation of metastable ferrite into austenite in the adjoining regions, as described in article [3]....
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...Because the excellent properties of DSS joint are mainly dependent on the appropriate biphase ratio in the structure of welded joint, work has been carried out on joining of duplex stainless steels, and joint structure-property correlations have been addressed [3]....
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...The microstructural phase balance is disturbed in DSS welds due to the thermal cycles associated with welding, and the desired phase balance is generally achieved either through control of heat input or by altering the chemical composition of filler metal [3]....
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