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Journal of Materials Engineering and Performance

Erschienen in:

01.01.2014

Effects of Flux Precoating and Process Parameter on Welding Performance of Inconel 718 Alloy TIG Welds

verfasst von: Hsuan-Liang Lin, Tong-Min Wu, Ching-Min Cheng

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 1/2014

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Abstract

The purpose of this study is to investigate the effect of activating flux on the depth-to-width ratio (DWR) and hot cracking susceptibility of Inconel 718 alloy tungsten inert gas (TIG) welds. The Taguchi method is employed to investigate the welding parameters that affect the DWR of weld bead and to achieve optimal conditions in the TIG welds that are coated with activating flux in TIG (A-TIG) process. There are eight single-component fluxes used in the initial experiment to evaluate the penetration capability of A-TIG welds. The experimental results show that the Inconel 718 alloy welds precoated with 50% SiO₂ and 50% MoO₃ flux were provided with better welding performance such as DWR and hot cracking susceptibility. The experimental procedure of TIG welding process using mixed-component flux and optimal conditions not only produces a significant increase in DWR of weld bead, but also decreases the hot cracking susceptibility of Inconel 718 alloy welds.

Vorheriger Artikel The Effect of Direct and Cross-Rolling on Mechanical Properties and Microstructure of Severely Deformed Aluminum

Nächster Artikel Densification Behavior and Performances of C/C Composites Derived from Various Carbon Matrix Precursors

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Titel: Effects of Flux Precoating and Process Parameter on Welding Performance of Inconel 718 Alloy TIG Welds
verfasst von: Hsuan-Liang Lin
Tong-Min Wu
Ching-Min Cheng
Publikationsdatum: 01.01.2014
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 1/2014
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-013-0756-z

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