Controlling hot cracking in Ni-based Inconel-718 superalloy cast sheets during tungsten inert gas welding

•We tested crater, weld-seam solidification, and heat-affected-zone liquation cracks.•Factors and regions were examined for multi-pass/multi-layer welding hot cracking.•Decreasing welding joint macro/microsegregation were studied to control hot cracks.•Phase transition, thermodynamic properties, and...

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Veröffentlicht in:	Journal of materials processing technology 2015-08, Vol.222, p.381-390
Hauptverfasser:	Ye, Xin, Hua, Xueming, Wang, Min, Lou, Songnian
Format:	Artikel
Sprache:	eng
Schlagworte:	Cracking (fracturing) Cracks Crater Finite element method Heat affected zone Heat input Homogenizing Hot cracking Inconel 718 Mathematical analysis Nickel base alloys Segregation Superalloys Weld defects Welding
Online-Zugang:	Volltext
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