R.S. Vidyarthy

TL;DR: The flux assisted GTAW or A-TIG process developed at the Paton Welding Institute in 1960 as mentioned in this paper has attracted the research interest in last one decade and attempts have been made to analyze and review the literature published with respect to (a) advancement of various hypotheses to explain the reasons for high penetration achieved using TIG, (b) effect of input process parameters related to GTAW and A-tIG, effect of chemical composition and various alloying elements in steel on penetration achieved by TIG.

TL;DR: In this paper, the effect of activating flux tungsten inert gas (A-TIG) welding on the microstructural, mechanical and corrosion behaviour of the 316L stainless steel (SS) and P91 steel weldment was enunciated.

TL;DR: In this paper, the influence of process parameters such as welding current (I), welding speed (S), and flux coating density (F) on different aspects of weld bead geometry for example depth of penetration (DOP), bead width (BW), depth to width ratio (D/W), and weld fusion zone area (WA) were investigated by using the central composite design.

TL;DR: In this article, a comparative study was performed on the evolution of δ-ferrite patches in weld fusion zone and heat affected zones (HAZs) of welded joints.

TL;DR: In this article, the effects of CeO2 and MoO3 based activating flux on heat input, weld bead geometry, and angular distortion during single pass A-TIG welding of the P91 steel were evaluated and compared with the conventional TIG welding.