Effect of heat input on weld microstructure and toughness of laser-arc hybrid welding of martensitic stainless steel

[Display omitted] •The inter- and intra-granular carbides in CGHAZ play a big role in the toughness.•The variations of CGHAZ microstructure and Erichsen value are consistent.•An equivalent grain size is proposed to establish a new Hall-petch relationship.•The threshold of equivalent grain size is ca...

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Veröffentlicht in:	Journal of materials processing technology 2017-07, Vol.245, p.7-14
Hauptverfasser:	Hao, Kangda, Zhang, Chen, Zeng, Xiaoyan, Gao, Ming
Format:	Artikel
Sprache:	eng
Schlagworte:	Arc heating Arc welding Base metal Carbides Ductility tests Fracture toughness Heat Heat affected zone Hybrid welding Laser beam welding Martensitic stainless steel Martensitic stainless steels Microstructure Toughness Welding
Online-Zugang:	Volltext
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