Effect of Heat Input on the Microstructure and Mechanical Properties of Low Alloy Ultra‐High Strength Structural Steel Welded Joint

Microstructural evolution and mechanical properties of an ultra‐high strength structural steel welded joint at different heat inputs are investigated by metal active gas arc (MAG) welding technique. It is found that the microstructure of weld metal (WM) contained high volume fraction of acicular fer...

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Veröffentlicht in:	Steel research international 2018-06, Vol.89 (6), p.n/a
Hauptverfasser:	Wen, Changfei, Wang, Zhaodong, Deng, Xiangtao, Wang, Guodong, Misra, Raja Devesh Kumar
Format:	Artikel
Sprache:	eng
Schlagworte:	Arc heating Arc welding Bainite Ferrite Fracture toughness Grain boundaries Heat affected zone Heat input Heat treating High strength alloys High strength low alloy steels Impact strength Martensite Mechanical properties Microstructure Nonmetallic inclusions Structural steels Ultra‐high strength steel Weld defects Weld metal Welded joint Welded joints
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