Effect of a brief post-weld heat treatment on the microstructure evolution and pitting corrosion of laser beam welded UNS S31803 duplex stainless steel

► Pitting corrosion is investigated before and after post-weld heat treatment. ► The Cr2N precipitation is studied by SEM, TEM and AFM. ► The best short-time post-weld heat treatment condition is determined. ► The cause of pitting corrosion resistance variation is discussed in detail. The effect of...

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Veröffentlicht in:	Corrosion science 2012-12, Vol.65, p.472-480
Hauptverfasser:	Yang, Yanze, Wang, Zhiyu, Tan, Hua, Hong, Jufeng, Jiang, Yiming, Jiang, Laizhu, Li, Jin
Format:	Artikel
Sprache:	eng
Schlagworte:	A. Stainless steel Applied sciences B. TEM C. Pitting corrosion C. Welding Corrosion Corrosion effects Corrosion environments Corrosion resistance Duplex stainless steels Evolution Exact sciences and technology Joining, thermal cutting: metallurgical aspects Laser beam welding Metals. Metallurgy Microstructure Pitting (corrosion) Post-weld heat treatment Welding
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