標題: Effects of Flux Precoating and Process Parameter on Welding Performance of Inconel 718 Alloy TIG Welds
作者: Lin, Hsuan-Liang
Wu, Tong-Min
Cheng, Ching-Min
機械工程學系
Department of Mechanical Engineering
關鍵字: activating flux;hot cracking;Inconel 718 alloy;TIG welding;welds morphology
公開日期: 1-Jan-2014
摘要: 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.
URI: http://dx.doi.org/10.1007/s11665-013-0756-z
http://hdl.handle.net/11536/23615
ISSN: 1059-9495
DOI: 10.1007/s11665-013-0756-z
期刊: JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
Volume: 23
Issue: 1
起始頁: 125
結束頁: 132
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