Dipali Pandya, Amarish Badgujar, Mohamed Rafik Noor Mohamed Qureshi, Nilesh D. Ghetiya
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引用次数: 0
Abstract
A new variant of activated tungsten inert gas (A-TIG) welding is flux-bounded tungsten inert gas (FB-TIG) welding. The present study explores the nature of flux gap and variation of flux as a single component over the geometry of weld bead in 2205 duplex stainless steel (DSS) FB-TIG weld joint. Significant improvement in penetration depth is observed at the flux gap at 2 mm with SiO2 flux, which is 193% higher than the TIG weld. Constriction of the arc is a predominant mechanism responsible for high penetration depth. Along with this, the article discusses the variation of welding current as a heat input over weld bead geometry, microstructure, and mechanical properties. The peak value of tensile strength of the FB-TIG weld is 10% higher than the TIG weld metal. However, the maximum microhardness of FB-TIG weld metal is 2% less than that of TIG weld metal.
期刊介绍：
IJMatEI is a multidisciplinary journal that will publish refereed high quality articles with special emphasis on research and development into recent advances in composites, ceramics, functionally graded materials, cellular materials and ecomaterials. IJMatEI fosters information exchange and discussion on all aspects of modern materials engineering, such as materials preparation and processing, relationships between structure (nano and micro) and properties (physical, chemical, mechanical, thermal, electrical and magnetic), as well as performance and technological applications for advanced industry.
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